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Description:Skyline F3 Flight Controller + on board OSD to simplify your FPV build. No need for unreliable external OSD modules anymore. With a simple flick of a switch, the OSD can easily and quickly be turned ON or OFF. The OSD is integrated into the Flight Controller so setting up is simple.Connect an fpv camera and Video Tx directly to the Skyline F3 + OSD board. With MW_OSD pre installed on the Skyline F3+OSD, the pilot can change PID on the spot through OSD without having to connect to a computer. Simply use the transmitter’s stick commands and follow the OSD menu.Key Features:Run Cleanflight, Betaflight, or BaseflightWire-to-Board micro connectors.Built-in gyro/accelerometer, magnetometer (Advanced Version also includes barometer and magnetometer)Blackbox ready with 2MB of storable data.Thin and ultra compact for clean/tight builds.Uses top quality electronic components and high precision SMT.STM32 F303 Processor.Fly in Manual Mode, Angle Mode, Horizon Mode, Head-Holding Mode, Head-free Mode, and Altitude-Hold Mode (Altitude-Hold Mode is available in Advanced version).Supports Quad-,Tri-,Hex, Octo-, various multirotors.Flexible RC Input: PPM, Non-Inverted SBUS, PWM.Flash to latest firmware through the Micro-USB (**NOTE: Please be sure to leave OSD switch OFF when using Micro-USB).GPS Hold / Return-To-Home Feature supported (GPS module needed).Specification:Dimension: 35mm x 35 mm x 5 mm (30.5mm Mounting)Weight: 4.9g (W/O wires)Included:1x SKYLINE F3+OSD (Acro)2x RC breakout cable1x vBat cable1x buzzer cable2x UART cables4x Nylon Standoffs and nuts1x Header Pin Assortment (Straight and 90 Degree)Note: SKYLINE F3+OSD hardware is compatible with SPRACINGF3 firmware, including cleanflight, baseflight, betaflight, raceflight, etc. Below are the links
OSD note - OSD note v1.1- QT
SNID number, then calculate the Universal Password. X1161/X1261 Confidential... Page 52: Function Test & Alignment Procedure 1. After final QC step, we have to erase all saved change again and restore the OSD default setting. The following actions will allow you to erase all end-users' settings and restore the default setting: (1) Please get into OSD menu. (2) To execute "Reset" function. X1161/X1261 Confidential... Page 53: Test Condition Screen Defects (While replacing DMD Chip, DMD Board, Main Board) 12.5 cm Frame Zone C Zone B 12.5 cm X1161/X1261 Confidential... Page 54: Test Inspection Procedure EDID Re-write Lamp Hour Usage Reset Default Language Rod adjustment Waveform Download Note: - If Color appears abnormal after changing Main Board Module, please do Color Wheel index adjustment. - After changing parts, check the information above table. X1161/X1261 Confidential... Page 55: Pc Mode Note: - When getting into function test, adjust the zoom ring and focus ring to guarantee the image maximum and clearest, then start to test. - Test signal: analog 800 x 600 @60Hz (for X1161); analog 1024 x 768 @60Hz (for X1261). Page 56 Note: The defect criteria follows TI specification. 4. Dead Pixel (Dark pixel) Procedure - Test equipment: video generator - Test signal: analog 1024 x 768 @60Hz - Test pattern: Full white Inspection item - Dead pixels check. Full white X1161/X1261 Confidential... Page 57 - The dark blemish is unacceptable when it is more Blue 60 than four under blue 60 pattern. - Ref. Defect specification table Note: TheOSD note( )PC _OSD note( )
#1 HiWOW! I've used and am using a lot of this kind of software (like HWMonitor, MSI AfterBurner, CPUID, etc. to name a few), but your software, now your software made me sit up and take note. That being said I am not without suggestions, so I will proceed to supply these suggestions in the hopes that you will consider them. It is my first time in your forum and like most people I did not read much before this post, so please just delete it and accept my apologies if I overstepped the bounds of acceptability in your house.Note that I downloaded HWiNFO a couple of hours ago so these are first impressions.I noticed the following changes to my system:1. CPU usage is up by 5% on average (that is after I disabled most voltage etc. monitoring in the app and it is in the tray) causing my pumps to spin up a bit in idle, but I guess that can be expected. I will tweak some.2. My mouse is jerky and sometimes jumps from one place to another whilst the application is open.I noticed the following about the program that makes it less fun to use:1. OSD: To set up the OSD you need to go into the settings and find the item again when you are looking at the item in the main list. A right-click menu item which only shows the OSD setup portion in a popup will really simplify this.2. OSD: I noticed that I can add the label of the first item in a row and it will look more like MSI AfterBurner (CPU: 23C, 45%, 1500 RPM), but I do not want that to be the label in the main list. A new field to the OSD setup page called 'OSD Label' where we can specify what to call it in OSD would be great.3. OSD: It is impossible to see from the main list information like 'Is this item in OSD and where (row, col)'. Custom columns showing this information would be very helpful. Also a column with the heading (sensor name). osd note free download. View, compare, and download osd note at SourceForgeosd note free download - SourceForge
53 Adjusting the Monitor When pressing the MENU button after locking the OSD This is the function that locks the OSD in order to keep the current states of settings or prevent others from adjusting the current settings. Lock : Hold down the MENU button for more than five (5) seconds to activate the OSD ad- justment lock function. Page 54: Customized Key Note Though the OSD adjustment lock function is activated, you can still adjust the brightness and contrast, and adjust Customized Key ( Customized key You can customize key assignment for the Custom button according to your preferences. To view the operating screen displayed when pressing the [ customized key for a function, click the name of each function. Page 55 Volume When OSD is not on the screen, push the button to adjust volume. SOURCE Selects the video signal while the OSD is off. OSD Function Picture Brightness Contrast MagicBright Picture Mode... Page 56 Color MagicColor Color Tone Image Coarse Language Setup Reset AV Mode Information Picture Brightness (Not available in MagicBright mode of Dynamic Contrast.) You can use the on-screen menus to change the brightness according to personal prefer- ence. MENU → → →... Page 57 Adjusting the Monitor You can use the on-screen menus to change the contrast according to personal preference. MENU → → MENU → → → MagicBright Push the button to circle through available preconfigured modes. MagicBright is a new feature providing optimum viewing environment depending on the con- tents of theOSD note download for Windows - OnWorks
Form of a list of name/value pairs describing the OSD’s position. For example, if an OSD is in a particular row, rack, chassis and host, and is part of the default CRUSH tree, its crush location could be described as: root=default row=a rack=a2 chassis=a2a host=a2a1 Note: The order of the keys does not matter. The key name (left of = ) must be a valid CRUSH type. By default these include root, datacenter, room, row, pod, pdu, rack, chassis and host. You might edit the CRUSH map to change the types to suit your needs. You do not need to specify all the buckets/keys. For example, by default, Ceph automatically sets a ceph-osd daemon’s location to be root=default host={HOSTNAME} (based on the output from hostname -s). 2.2.2. Adding a Bucket To add a bucket instance to your CRUSH hierarchy, specify the bucket name and its type. Bucket names must be unique in the CRUSH map. ceph osd crush add-bucket {name} {type} Using colons (:) in bucket names is not supported. Add an instance of each bucket type you need for your hierarchy. The following example demonstrates adding buckets for a row with a rack of SSD hosts and a rack of hosts for object storage. ceph osd crush add-bucket ssd-row1 rowceph osd crush add-bucket ssd-row1-rack1 rackceph osd crush add-bucket ssd-row1-rack1-host1 hostceph osd crush add-bucket ssd-row1-rack1-host2 hostceph osd crush add-bucket hdd-row1 rowceph osd crush add-bucket hdd-row1-rack2 rackceph osd crush add-bucket hdd-row1-rack1-host1 hostceph osd crush add-bucket hdd-row1-rack1-host2 hostceph osd crush add-bucket hdd-row1-rack1-host3 hostceph osd crush add-bucket hdd-row1-rack1-host4 host Once you have completed these steps, view your tree. ceph osd tree Notice that the hierarchy remains flat. You must move your buckets into a hierarchical position after you add them to the CRUSH map. 2.2.3. Moving a Bucket When you create your initial cluster, Ceph has a default CRUSH map with a root bucket named default and your initial OSD hosts appear under the default bucket. When you add a bucket instance to your CRUSH map, it appears in the CRUSH hierarchy, but it does not necessarily appear under a particular bucket. To move a bucket instance to a particular location in your CRUSH hierarchy, specify the bucket name and its type. For example: ceph osd crush move ssd-row1 root=ssd-rootceph osd crush move ssd-row1-rack1 row=ssd-row1ceph osd crush move ssd-row1-rack1-host1 rack=ssd-row1-rack1ceph osd crush move ssd-row1-rack1-host2 rack=ssd-row1-rack1 Once you have completed these steps, you can view your tree. ceph osd tree You can also use ceph osd crush create-or-move to create a location while moving an OSD. 2.2.4. Removing a Bucket To remove a bucket instance from your CRUSH hierarchy, specify the bucket name. For example: ceph osd crush remove {bucket-name} Or: ceph osd crushDownload OSD_note_1_2_source.zip (OSD note) - SourceForge
On my new Windows 10 desktop I wanted an on-screen display (OSD) of system performance overlay while gaming - similar those benchmarking videos one finds on YouTube. While I don’t overclock my CPU or GPU, I still do want to know the utilization and temperatures, as these give me a hint as to whether the system is thermal throttled or bottlenecked.Starting from knowing absolutely nothing, I started by trying a few tools recommended by various netizens. I started with MSI Afterburner, but removed it as I don’t like the skins, is missing temperature data for my chipset, and I’d prefer to avoid accidentally blowing up my system!In reality, all I needed was two pieces of free software:RivaTuner Statistics Server (RTSS) 7.3.0 Beta 6, which although is installed with MSI Afterburner, is actually a separate program.HWiNFO64 6.34-4300 which has support for my B550 / Ryzen 5000 combination.The usual disclaimers - don’t download from untrusted sources, and don’t blindly follow what random stranges say (I am, of course, referring to myself).There are three ways to setup the OSD, and all of them need RTSS running.HWiNFO sending data to RTSS, orRTSS using internal HAL data source (HWiNFO not required), orRTSS getting data from HWiFO.1. HWiNFO sending data to RTSSIn HWiNFO, Config > OSD (RTSS):Check Enable hotkey for toggling, and set the hotkey, I use Control-Shift-F12 Select the stats you want sent to RTSS, and for each, Check Show value in OSD and any other options (I like Units in superscript)Define the Position (Line and Column)Under the Custom tab, you can rename the elements, e.g. rename GPU Core Load to GPU - just to be consistent with the statistic called CPU which is actually the CPU temperature from the motherboard. Note that in RTSS, the OverlayEditor.dll should be disabled (more on that later).EntryLineColumnShow LabelColourTotal CPU Usage11PinkPhysical Memory Used12PinkCPU (Temperature)13YPinkGPU Core Load21GreenGPU Memory Allocated22GreenGPU (Temperature)23YGreenWhen running a DirectX game, hit the hotkey, and you’ll get something like this: The downside is you don’t have the flexibility to design your own layout. So, on to Option 2...2. RTSS using internal HAL data sourceIn RTSS - theDownload OSD_note_v1_1_source.zip (OSD note) - SourceForge
OSDs to reweight prevents significant rebalancing. Optional. no-increasing is off by default. Increasing the osd weight is allowed when using the reweight-by-utilization or test-reweight-by-utilization commands. If this option is used with these commands, it prevents the OSD weight from increasing, even if the OSD is underutilized. Optional. Executing reweight-by-utilization is recommended and somewhat inevitable for large clusters. Utilization rates might change over time, and as your cluster size or hardware changes, the weightings might need to be updated to reflect changing utilization. If you elect to reweight by utilization, you might need to re-run this command as utilization, hardware or cluster size change. Executing this or other weight commands that assign a weight will override the weight assigned by this command (for example, osd reweight-by-utilization, osd crush weight, osd weight, in or out). 2.5.5. Set an OSD’s Weight by PG Distribution In CRUSH hierarchies with a smaller number of OSDs, it’s possible for some OSDs to get more PGs than other OSDs, resulting in a higher load. You can reweight OSDs by PG distribution to address this situation by executing the following: osd reweight-by-pg Where: poolname is the name of the pool. Ceph will examine how the pool assigns PGs to OSDs and reweight the OSDs according to this pool’s PG distribution. Note that multiple pools could be assigned to the same CRUSH hierarchy. Reweighting OSDs according to one pool’s distribution could have unintended effects for other pools assigned to the same CRUSH hierarchy if they do not have the same size (number of replicas) and PGs. 2.5.6. Recalculate a CRUSH Tree’s Weights CRUSH tree buckets should be the sum of their leaf weights. If you manually edit the CRUSH map weights, you should execute the following to ensure that the CRUSH bucket tree accurately reflects the sum of the leaf OSDs under the bucket. osd crush reweight-all2.6. Primary Affinity When a Ceph Client reads or writes data, it always contacts the primary OSD in the acting set. For set [2, 3, 4], osd.2 is the primary. Sometimes an OSD is not well suited to act as a primary compared to other OSDs (for example, it has a slow disk or a slow controller). To prevent performance bottlenecks (especially on read operations) while maximizing utilization of your hardware, you can set a Ceph OSD’s primary affinity so that CRUSH is less likely to use the OSD as a primary in an acting set. : ceph osd primary-affinity Primary affinity is 1 by default (that is, an OSD might act as a primary). You might set the OSD primary range from 0-1, where 0 means that the OSD might NOT be used as a primary and 1 means that an OSD. osd note free download. View, compare, and download osd note at SourceForge Free OSD Note downloand in english [EN] Gratis OSD Note downloaden in het Nederlands [NL] 免费OSD Note下载中国人 [ZH] Pobierz za darmo OSD Note po polsku [PL] Gratis OSD Note downloand dalam bahasa Indonesia [ID] T l chargement gratuit de OSD Note en fran aise [FR] Kostenloser OSD Note-Download in deutsch [DE]
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Osd.3 osd.6 osd.7 Create rules to use the devices: Syntaxceph osd crush rule create-replicated RULE_NAME ROOT FAILURE_DOMAIN_TYPE CLASS Example[ceph root@host01 /]# ceph osd crush rule create-replicated cold default host hdd[ceph root@host01 /]# ceph osd crush rule create-replicated hot default host ssd Set pools to use the rules: Syntaxceph osd pool set POOL_NAME crush_rule RULE_NAME Example[ceph root@host01 /]# ceph osd pool set cold_tier crush_rule cold[ceph root@host01 /]# ceph osd pool set hot_tier crush_rule hot 2.2. CRUSH Hierarchies The CRUSH map is a directed acyclic graph, so it can accommodate multiple hierarchies, for example, performance domains. The easiest way to create and modify a CRUSH hierarchy is with the Ceph CLI; however, you can also decompile a CRUSH map, edit it, recompile it, and activate it. When declaring a bucket instance with the Ceph CLI, you must specify its type and give it a unique string name. Ceph automatically assigns a bucket ID, sets the algorithm to straw2, sets the hash to 0 reflecting rjenkins1 and sets a weight. When modifying a decompiled CRUSH map, assign the bucket a unique ID expressed as a negative integer (optional), specify a weight relative to the total capacity/capability of its item(s), specify the bucket algorithm (usually straw2), and the hash (usually 0, reflecting hash algorithm rjenkins1). A bucket can have one or more items. The items can consist of node buckets (for example, racks, rows, hosts) or leaves (for example, an OSD disk). Items can have a weight that reflects the relative weight of the item. When modifying a decompiled CRUSH map, you can declare a node bucket with the following syntax: [bucket-type] [bucket-name] { id [a unique negative numeric ID] weight [the relative capacity/capability of the item(s)] alg [the bucket type: uniform | list | tree | straw2 ] hash [the hash type: 0 by default] item [item-name] weight [weight]} For example, using the diagram above, we would define two host buckets and one rack bucket. The OSDs are declared as items within the host buckets: host node1 { id -1 alg straw2 hash 0 item osd.0 weight 1.00 item osd.1 weight 1.00}host node2 { id -2 alg straw2 hash 0 item osd.2 weight 1.00 item osd.3 weight 1.00}rack rack1 { id -3 alg straw2 hash 0 item node1 weight 2.00 item node2 weight 2.00} In the foregoing example, note that the rack bucket does not contain any OSDs. Rather it contains lower level host buckets, and includes the sum total of their weight in the item entry. 2.2.1. CRUSH Location A CRUSH location is the position of an OSD in terms of the CRUSH map’s hierarchy. When you express a CRUSH location on the command line interface, a CRUSH location specifier takes theDownload OSD_note_1_4_source.zip (OSD note) - SourceForge
Example: ddm.exe /Console Start /1:WriteResolution WriteRefreshRate To set Refresh Rate supported as listed on the operating system. Example: ddm.exe /Console Start /1:WriteRefreshRate Export Monitor On-Screen-Display (OSD) Settings There is a command apart from the DDM application settings. Using this command exports and imports the On-Screen display (OSD) settings between monitors of the same model. (If the selected FY24 and above monitors support the Multi-Monitor Sync* function.) Syntax/ExportOSDSettings [filename] Example:ddm.exe /1:ExportOSDSettings C:\temp\model1.bin The OSD menu settings include: Brightness or Contrast Input Source Color (Color Preset, Hue, Saturation) Display (For example: Response time, sharpness, ALS, MST, MMS, USB-C Prioritization, and Uniformity Compensation) PBP and/or PIP Menu Personalize Import Monitor On-Screen-Display (OSD) Settings ImportOSDSettings command reads all the settings recorded in the designated filename and configuration on the respective monitors of the same model. The user is prompted to import when a monitor of the configured model is connected. To import OSD settings, it is required to connect USB upstream port between the computer and the monitors. If the same model of monitors is connected in a daisy chain, the settings are also copied from the first monitor to the other monitors. Syntax/ImportOSDSettings [filename] If you intend to import without user intervention, you may turn off the prompt./writeimportpermission off /ImportOSDSettings [filename] Note: Clone OSD settings require a USB upstream port connected between the computer and one or more monitors. If the same model of monitors is connected in a daisy chain, the settings are also copied from the first monitor to other monitors. Service Tag is optional. It can be found in the Others tab of the monitor OSD menu. Back to top Remote Firmware Update for Dell Display Manager Pre-Requisites for carrying out a Firmware Update Connect a USB Type-C or USB upstream cable between the monitor and your computer. (Preferably a direct connection between your computer and the monitor.) You can connect the computer with monitor 1 and then USB cables between the monitors with Multi-Stream Transport (MST) turned on for multiple monitors. See the setup configurations below: NOTE: Monitor 1 and Monitor 2 can be identical or different models. Configuration A (The computer is connected to monitor 1 and monitor 1 is daisy-chained using a USB connection to monitor 2.) A USB A to B cable between the monitor to the computer is mandatory to allow the firmware update (Shown in Red.) A USB A to B cable is required between the computer and Monitor 1 if the computer is connected with monitor 1 using either a DP or mDP cable. (Shown in Red.) Figure 41 Configuration A Configuration B (The computer is directly connected to monitor 1 and monitor 2). A DP, mDP, or HDMI cable is used between. osd note free download. View, compare, and download osd note at SourceForgeOSD Note Windows ( /1.3 )
Channel/Command Interface) allows your monitor parameters (brightness, color balance, and etc.) to be adjustable via the software on your computer. You can disable this feature by selecting Off. Enable this feature for best user experience and optimum performance of your monitor. Page 62 Service Tag Displays the service tag of your monitor. This string is required when you look for phone support, check your warranty status, update drivers on Dell's website, etc. Self-Diagnostic Press the joystick to initiate the self-diagnostic process. 1. When initiated, a gray screen appears. Page 63: Osd Messages OSD Messages Initial Setup When Factory Reset is selected, the following message appears: When Yes is selected, the following message appears. OSD Warning Messages When the monitor does not support a particular resolution mode, you will see the following message: │... Page 64 This means that the monitor cannot synchronize with the signal that it is receiving from the computer. See Monitor Specifications for the Horizontal and Vertical frequency ranges addressable by this monitor. Recommended mode is 1920 x 1080. NOTE: The message may be slightly different according to the connected input signal. Page 65 NOTE: If you select Yes for any one of the features mentioned above, the message will not appear next time you intend to change the settings of these features. When you perform a factory reset, the message will appear again. You will see the following message before the Lock function is activated: NOTE: The message may be slightly different according to the selectedComments
Description:Skyline F3 Flight Controller + on board OSD to simplify your FPV build. No need for unreliable external OSD modules anymore. With a simple flick of a switch, the OSD can easily and quickly be turned ON or OFF. The OSD is integrated into the Flight Controller so setting up is simple.Connect an fpv camera and Video Tx directly to the Skyline F3 + OSD board. With MW_OSD pre installed on the Skyline F3+OSD, the pilot can change PID on the spot through OSD without having to connect to a computer. Simply use the transmitter’s stick commands and follow the OSD menu.Key Features:Run Cleanflight, Betaflight, or BaseflightWire-to-Board micro connectors.Built-in gyro/accelerometer, magnetometer (Advanced Version also includes barometer and magnetometer)Blackbox ready with 2MB of storable data.Thin and ultra compact for clean/tight builds.Uses top quality electronic components and high precision SMT.STM32 F303 Processor.Fly in Manual Mode, Angle Mode, Horizon Mode, Head-Holding Mode, Head-free Mode, and Altitude-Hold Mode (Altitude-Hold Mode is available in Advanced version).Supports Quad-,Tri-,Hex, Octo-, various multirotors.Flexible RC Input: PPM, Non-Inverted SBUS, PWM.Flash to latest firmware through the Micro-USB (**NOTE: Please be sure to leave OSD switch OFF when using Micro-USB).GPS Hold / Return-To-Home Feature supported (GPS module needed).Specification:Dimension: 35mm x 35 mm x 5 mm (30.5mm Mounting)Weight: 4.9g (W/O wires)Included:1x SKYLINE F3+OSD (Acro)2x RC breakout cable1x vBat cable1x buzzer cable2x UART cables4x Nylon Standoffs and nuts1x Header Pin Assortment (Straight and 90 Degree)Note: SKYLINE F3+OSD hardware is compatible with SPRACINGF3 firmware, including cleanflight, baseflight, betaflight, raceflight, etc. Below are the links
2025-03-26SNID number, then calculate the Universal Password. X1161/X1261 Confidential... Page 52: Function Test & Alignment Procedure 1. After final QC step, we have to erase all saved change again and restore the OSD default setting. The following actions will allow you to erase all end-users' settings and restore the default setting: (1) Please get into OSD menu. (2) To execute "Reset" function. X1161/X1261 Confidential... Page 53: Test Condition Screen Defects (While replacing DMD Chip, DMD Board, Main Board) 12.5 cm Frame Zone C Zone B 12.5 cm X1161/X1261 Confidential... Page 54: Test Inspection Procedure EDID Re-write Lamp Hour Usage Reset Default Language Rod adjustment Waveform Download Note: - If Color appears abnormal after changing Main Board Module, please do Color Wheel index adjustment. - After changing parts, check the information above table. X1161/X1261 Confidential... Page 55: Pc Mode Note: - When getting into function test, adjust the zoom ring and focus ring to guarantee the image maximum and clearest, then start to test. - Test signal: analog 800 x 600 @60Hz (for X1161); analog 1024 x 768 @60Hz (for X1261). Page 56 Note: The defect criteria follows TI specification. 4. Dead Pixel (Dark pixel) Procedure - Test equipment: video generator - Test signal: analog 1024 x 768 @60Hz - Test pattern: Full white Inspection item - Dead pixels check. Full white X1161/X1261 Confidential... Page 57 - The dark blemish is unacceptable when it is more Blue 60 than four under blue 60 pattern. - Ref. Defect specification table Note: The
2025-04-2153 Adjusting the Monitor When pressing the MENU button after locking the OSD This is the function that locks the OSD in order to keep the current states of settings or prevent others from adjusting the current settings. Lock : Hold down the MENU button for more than five (5) seconds to activate the OSD ad- justment lock function. Page 54: Customized Key Note Though the OSD adjustment lock function is activated, you can still adjust the brightness and contrast, and adjust Customized Key ( Customized key You can customize key assignment for the Custom button according to your preferences. To view the operating screen displayed when pressing the [ customized key for a function, click the name of each function. Page 55 Volume When OSD is not on the screen, push the button to adjust volume. SOURCE Selects the video signal while the OSD is off. OSD Function Picture Brightness Contrast MagicBright Picture Mode... Page 56 Color MagicColor Color Tone Image Coarse Language Setup Reset AV Mode Information Picture Brightness (Not available in MagicBright mode of Dynamic Contrast.) You can use the on-screen menus to change the brightness according to personal prefer- ence. MENU → → →... Page 57 Adjusting the Monitor You can use the on-screen menus to change the contrast according to personal preference. MENU → → MENU → → → MagicBright Push the button to circle through available preconfigured modes. MagicBright is a new feature providing optimum viewing environment depending on the con- tents of the
2025-03-24Form of a list of name/value pairs describing the OSD’s position. For example, if an OSD is in a particular row, rack, chassis and host, and is part of the default CRUSH tree, its crush location could be described as: root=default row=a rack=a2 chassis=a2a host=a2a1 Note: The order of the keys does not matter. The key name (left of = ) must be a valid CRUSH type. By default these include root, datacenter, room, row, pod, pdu, rack, chassis and host. You might edit the CRUSH map to change the types to suit your needs. You do not need to specify all the buckets/keys. For example, by default, Ceph automatically sets a ceph-osd daemon’s location to be root=default host={HOSTNAME} (based on the output from hostname -s). 2.2.2. Adding a Bucket To add a bucket instance to your CRUSH hierarchy, specify the bucket name and its type. Bucket names must be unique in the CRUSH map. ceph osd crush add-bucket {name} {type} Using colons (:) in bucket names is not supported. Add an instance of each bucket type you need for your hierarchy. The following example demonstrates adding buckets for a row with a rack of SSD hosts and a rack of hosts for object storage. ceph osd crush add-bucket ssd-row1 rowceph osd crush add-bucket ssd-row1-rack1 rackceph osd crush add-bucket ssd-row1-rack1-host1 hostceph osd crush add-bucket ssd-row1-rack1-host2 hostceph osd crush add-bucket hdd-row1 rowceph osd crush add-bucket hdd-row1-rack2 rackceph osd crush add-bucket hdd-row1-rack1-host1 hostceph osd crush add-bucket hdd-row1-rack1-host2 hostceph osd crush add-bucket hdd-row1-rack1-host3 hostceph osd crush add-bucket hdd-row1-rack1-host4 host Once you have completed these steps, view your tree. ceph osd tree Notice that the hierarchy remains flat. You must move your buckets into a hierarchical position after you add them to the CRUSH map. 2.2.3. Moving a Bucket When you create your initial cluster, Ceph has a default CRUSH map with a root bucket named default and your initial OSD hosts appear under the default bucket. When you add a bucket instance to your CRUSH map, it appears in the CRUSH hierarchy, but it does not necessarily appear under a particular bucket. To move a bucket instance to a particular location in your CRUSH hierarchy, specify the bucket name and its type. For example: ceph osd crush move ssd-row1 root=ssd-rootceph osd crush move ssd-row1-rack1 row=ssd-row1ceph osd crush move ssd-row1-rack1-host1 rack=ssd-row1-rack1ceph osd crush move ssd-row1-rack1-host2 rack=ssd-row1-rack1 Once you have completed these steps, you can view your tree. ceph osd tree You can also use ceph osd crush create-or-move to create a location while moving an OSD. 2.2.4. Removing a Bucket To remove a bucket instance from your CRUSH hierarchy, specify the bucket name. For example: ceph osd crush remove {bucket-name} Or: ceph osd crush
2025-03-29OSDs to reweight prevents significant rebalancing. Optional. no-increasing is off by default. Increasing the osd weight is allowed when using the reweight-by-utilization or test-reweight-by-utilization commands. If this option is used with these commands, it prevents the OSD weight from increasing, even if the OSD is underutilized. Optional. Executing reweight-by-utilization is recommended and somewhat inevitable for large clusters. Utilization rates might change over time, and as your cluster size or hardware changes, the weightings might need to be updated to reflect changing utilization. If you elect to reweight by utilization, you might need to re-run this command as utilization, hardware or cluster size change. Executing this or other weight commands that assign a weight will override the weight assigned by this command (for example, osd reweight-by-utilization, osd crush weight, osd weight, in or out). 2.5.5. Set an OSD’s Weight by PG Distribution In CRUSH hierarchies with a smaller number of OSDs, it’s possible for some OSDs to get more PGs than other OSDs, resulting in a higher load. You can reweight OSDs by PG distribution to address this situation by executing the following: osd reweight-by-pg Where: poolname is the name of the pool. Ceph will examine how the pool assigns PGs to OSDs and reweight the OSDs according to this pool’s PG distribution. Note that multiple pools could be assigned to the same CRUSH hierarchy. Reweighting OSDs according to one pool’s distribution could have unintended effects for other pools assigned to the same CRUSH hierarchy if they do not have the same size (number of replicas) and PGs. 2.5.6. Recalculate a CRUSH Tree’s Weights CRUSH tree buckets should be the sum of their leaf weights. If you manually edit the CRUSH map weights, you should execute the following to ensure that the CRUSH bucket tree accurately reflects the sum of the leaf OSDs under the bucket. osd crush reweight-all2.6. Primary Affinity When a Ceph Client reads or writes data, it always contacts the primary OSD in the acting set. For set [2, 3, 4], osd.2 is the primary. Sometimes an OSD is not well suited to act as a primary compared to other OSDs (for example, it has a slow disk or a slow controller). To prevent performance bottlenecks (especially on read operations) while maximizing utilization of your hardware, you can set a Ceph OSD’s primary affinity so that CRUSH is less likely to use the OSD as a primary in an acting set. : ceph osd primary-affinity Primary affinity is 1 by default (that is, an OSD might act as a primary). You might set the OSD primary range from 0-1, where 0 means that the OSD might NOT be used as a primary and 1 means that an OSD
2025-04-01