Required fields are marked *. Isilon FlexProtect protects data in the cluster based on the configured protection policy, quickly rebuilding failed disks, harnessing free storage space across the entire cluster to further prevent data loss, and monitoring and preemptively migrating data off of at-risk components. Applies a default file policy across the cluster. Requested protection settings determine the level of hardware failure that a cluster can recover from without suffering data loss. Undedupe undoes the work that the dedupe job performed, potentially increasing disk space usage. The default protection, +2:+1, enables all jobs to run during a scan if there is no more than one failed device in each disk pool. The WDL is primarily used by FlexProtect to determine whether an inode references a degraded node or drive. Enforce SmartPools file policies on a subtree. Shadow stores are hidden files that are referenced by cloned and deduplicated files. If the cluster is all flash, you can disable this job. If you notice that other system jobs cannot be started or have been paused, you can use the FlexProtect is responsible for maintaining the appropriate protection level of data across the cluster. If a LIN is being restriped when a metatree transfer, it is added to a persistent queue, and this phase processes that queue. A. IntegrityScan B. MediaScan C. AutoBalance D. FlexProtect. The four available impact levels are paused, low, medium, and high. . Creates a list of changes between two snapshots with matching root paths. by Jon |Published September 18, 2017. Reddit and its partners use cookies and similar technologies to provide you with a better experience. While there is a device failure on a cluster, only the FlexProtect (or FlexProtectLin) job is allowed to run. An Isilon cluster is designed to continuously serve data, even when one or more components simultaneously fail. File filtering enables you to allow or deny file writes based on file type. OneFS uses the FlexProtect proprietary system to detect and repair files and directories that are in a degraded state due to node or drive failures. Saw broken pipe errors on some nodes when I issued all cluster commands to retrieve health status so I issued a 'isi config' followed by 'reboot all' to clear the issue. In addition, OneFS starts some jobs automatically when particular system conditions arisefor example, FlexProtect or FlexProtectLin, which start when a drive is smartfailed. The prior repair phases can miss protection group and metatree transfers. Collect is a "mark and sweep" garbage collector: it marks valid blocks in the first two phases of its run, then reclaims all blocks that are flagged in-use but not marked. Otherwise, if Job Engine determines that rebalancing should be LIN-based, it tries to start AutoBalance or AutoBalanceLin. isilon flexprotect job phases. A jobs resource usage can be traced from the CLI as such: Finally, upon completion, the Multiscan job report, detailing all four stages, can be viewed by using the following CLI command with the job ID as the argument: Your email address will not be published. You can specify these snapshots from the CLI. In contrast, Nicoles husband Sergey Brin Isilon Solutions Specialist Exam E20-555 Dumps Questions Online. Upgrades the file system after a software version upgrade. This job should be run manually in off-hours after setting up all quotas, and whenever setting up new quotas. by Jon |Published September 18, 2017. Isilon OneFS v6.5.5.12 B_6_5_5_164(RELEASE), Node-6# isi devicesNode 6, [ATTN]Bay 1 Lnum 14 [HEALTHY] SN:XSV52J3A /dev/da12Bay 2 Lnum 13 [HEALTHY] SN:XPV1R2ZA /dev/da11Bay 3 Lnum 6 [SMARTFAIL] SN:JPW9J0HD1E9PPC /dev/da6Bay 4 Lnum 12 [SMARTFAIL] SN:JPW9H0N013GRJV /dev/da3Bay 5 Lnum 1 [HEALTHY] SN:JPW9K0HD2S8N8L /dev/da10Bay 6 Lnum 4 [HEALTHY] SN:JPW9J0HD1HTK5C /dev/da8Bay 7 Lnum 7 [SMARTFAIL] SN:JPW9K0HD2B7G5L /dev/da5Bay 8 Lnum 10 [SMARTFAIL] SN:JPW9K0HD2AY83L /dev/da2Bay 9 Lnum 2 [HEALTHY] SN:JPW9K0HD2NJDGL /dev/da9Bay 10 Lnum 5 [HEALTHY] SN:JPW9K0HD2S8KJL /dev/da7Bay 11 Lnum 8 [SMARTFAIL] SN:JPW9K0HD2S7X1L /dev/da4Bay 12 Lnum 11 [SMARTFAIL] SN:JPW9K0HD2JA8DL /dev/da1, Running jobs:Job Impact Pri Policy Phase Run Time-------------------------- ------ --- ---------- ----- ----------FlexProtectLin[225484] Medium 1 MEDIUM 1/2 10:17:57Progress: Processed 94829185 LINs and 7961 GB: 27009769 files, 67819343directories; 73 errorsLast 10 of 73 errors10/15 16:15:14 Node 6: LIN { item={ done=false }linsid=1:1a56:0bcf::HEAD btree_iter={ done=false depth=0key_high=0x0000000000000000 key_low=0x0000000000000000 } } fstat failed:Bad file descriptor10/15 16:15:14 Node 6: LIN { item={ done=false }linsid=1:1a56:0be4::HEAD btree_iter={ done=false depth=0key_high=0x0000000000000000 key_low=0x0000000000000000 } } fstat failed:Bad file descriptor10/15 16:15:14 Node 6: LIN { item={ done=false }linsid=1:3362:a691::HEAD btree_iter={ done=false depth=0key_high=0x0000000000000000 key_low=0x0000000000000000 } } fstat failed:Bad file descriptor10/15 16:15:15 Node 6: LIN { item={ done=false }linsid=1:3362:a6ff::HEAD btree_iter={ done=false depth=0key_high=0x0000000000000000 key_low=0x0000000000000000 } } fstat failed:Bad file descriptor10/15 16:15:16 Node 6: LIN { item={ done=false }linsid=1:1a56:0d16::HEAD btree_iter={ done=false depth=0key_high=0x0000000000000000 key_low=0x0000000000000000 } } fstat failed:Bad file descriptor10/15 16:15:16 Node 6: LIN { item={ done=false }linsid=1:3362:a707::HEAD btree_iter={ done=false depth=0key_high=0x0000000000000000 key_low=0x0000000000000000 } } fstat failed:Bad file descriptor10/15 16:15:16 Node 6: LIN { item={ done=false }linsid=1:3362:a70e::HEAD btree_iter={ done=false depth=0key_high=0x0000000000000000 key_low=0x0000000000000000 } } fstat failed:Bad file descriptor10/15 16:15:16 Node 6: LIN { item={ done=false }linsid=1:3362:a71e::HEAD btree_iter={ done=false depth=0key_high=0x0000000000000000 key_low=0x0000000000000000 } } fstat failed:Bad file descriptor10/15 16:15:16 Node 6: LIN { item={ done=false }linsid=1:3362:a725::HEAD btree_iter={ done=false depth=0key_high=0x0000000000000000 key_low=0x0000000000000000 } } fstat failed:Bad file descriptor10/15 16:15:17 Node 6: LIN { item={ done=false }linsid=1:1a56:0d40::HEAD btree_iter={ done=false depth=0key_high=0x0000000000000000 key_low=0x0000000000000000 } } fstat failed:Bad file descriptor, Paused and waiting jobs:Job Impact Pri Policy Phase Run Time State-------------------------- ------ --- ---------- ----- ---------- -------------SnapshotDelete[225483] Medium 2 MEDIUM 1/1 0:00:00 System PausedProgress: n/aFSAnalyze[225468] Low 6 LOW 1/2 12:13:04 System PausedProgress: Processed 155854989 LINs; 0 errorsMediaScan[190752] Low 8 LOW 1/7 1:44:03 System PausedProgress: Found 0 ECCs on 1 drive; last completed: 9:0; 1 error03/31 23:41:54 Node 5: drive 0, sector 524288: Input/output error, Failed jobs:Job Errors Run Time End Time Retries Left-------------------------- ------ ---------- --------------- ------------FlexProtectLin[225482] 400 4d 3:56 10/15 12:44:22 2Progress: Processed 384986083 LINs and 39 TB: 200862417 files, 184123193directories; 399 errorsLast 5 of 400 errors10/14 17:03:16 Node 6: LIN { item={ done=false }linsid=2:bde2:bf83::HEAD btree_iter={ done=false depth=0key_high=0x0000000000000000 key_low=0x0000000000000000 } } fstat failed:Bad file descriptor10/14 17:03:16 Node 6: LIN { item={ done=false }linsid=2:bde2:bfa1::HEAD btree_iter={ done=false depth=0key_high=0x0000000000000000 key_low=0x0000000000000000 } } fstat failed:Bad file descriptor10/14 17:03:16 Node 6: LIN { item={ done=false }linsid=3:1fc9:292b::HEAD btree_iter={ done=false depth=0key_high=0x0000000000000000 key_low=0x0000000000000000 } } fstat failed:Bad file descriptor10/14 17:43:16 Node 6: Bad file descriptor10/15 12:44:22 Node 6: Phase failed with 399 previous errors, Recent job results:Time Job Event--------------- -------------------------- ------------------------------08/17 17:05:04 SnapshotDelete[225026] Succeeded (MEDIUM)08/17 17:14:57 SnapshotDelete[225027] Succeeded (MEDIUM)08/17 17:35:05 SnapshotDelete[225028] Succeeded (MEDIUM)08/17 17:45:02 SnapshotDelete[225029] Succeeded (MEDIUM)08/17 17:54:53 SnapshotDelete[225030] Succeeded (MEDIUM)08/17 21:35:20 SnapshotDelete[225031] Succeeded (MEDIUM)08/22 01:52:42 SnapshotDelete[225063] Succeeded (MEDIUM)10/15 12:44:22 FlexProtectLin[225482] Failed, Could you please let us know how to handle this situation. New Operations jobs added daily. National Life Group is a trade name of National Life Insurance Company, founded in Montpelier, Vt., in 1848, Life Insurance Company of the Southwest, Addison, Texas, chartered in 1955, and their affiliates. When this is complete, the drives are swept of any blocks which dont have the current generation in the Sweep phase. You can specify the protection of a file or directory by setting its requested protection. The environment consists of 100 TBs of file system data spread across five file systems. First, the in-use blocks and any new allocations are marked with the current generation in the Mark phase. The WDL keeps a list of the drives in use by a particular file, and are stored as an attribute within an inode and are thus protected by mirroring. Through the Job Engine, OneFS runs a subset of these jobs automatically, as needed, to ensure file and data integrity, check for and mitigate drive and node failures, and optimize free space. The minus -a option is a little verbose and returns 58 services as opposed to the default view of just 18, you might want to pipe the output through grep. After a component failure, lost data is restored on healthy components by the FlexProtect proprietary system. Associates a path, and the contents of that path, with a domain. First step in the whole process was the replacement of the Infiniband switches. Run as part of MultiScan, or automatically by the system when a device joins (or rejoins) the cluster. If you run an isi statistics are you seeing disk queues filling up? The cluster is said to be in a degraded state until FlexProtect (or FlexProtectLin) finishes its work. By comparison, phases 2-4 of the job are comparatively short. Available only if you activate a SmartQuotas license. In addition to automatic job execution after a drive or node removal or failure, FlexProtect can also be initiated on demand. This command is most efficient when file system metadata is stored on SSDs. The final phase of the FSAnalyze job runs on one node and can consume excessive resources on that node. The job can create or remove copies of blocks as needed to maintain the required protection level. I guess it then will have to rebuild all the data that was on the disk. This job is only useful on HDD drives. Multiple restripe category job phases and one-mark category job phase can run at the same time. FlexProtect overview A PowerScale cluster is designed to continuously serve data, even when one or more components simultaneously fail. As a result, almost any file scanned is enumerated for restripe. An SSD drive used for L3 cache contains only cache data that does not have to be protected by FlexProtect. setting to determine whether to run FlexProtect or FlexProtectLin. Study with Exam-Labs E20-559 Isilon Solutions Specialist for Storage Administrators Architects Exam Practice Test Questions and Answers Online. You can access files and directories using SMB for Windows file sharing, NFS for Unix file sharing, secure shell (SSH), FTP, and HTTP. Web administration interface Command Line isi status isi job. You can run any job manually, and you can create a schedule for most jobs according to your workflow. PowerScale cluster is designed to continuously serve data, even when one or more components simultaneously fail. Runs as part of MultiScan, or automatically by the system when a device joins (or rejoins) the cluster. Part 5: Additional Features. Isilon Solutions and Design Specialist Exam for Technology Architects E20-555 exam dumps have been updated, which are valid for you to pass DELL EMC certification E20-555 test. However, SnapDelete is not in an exclusion set so that implies that you either have 3 other jobs running at a higher priority or you have a FlexProtect job running which blocks all other jobs when it needs to run. FlexProtectLin runs by default when a copy of file system metadata is available on SSD storage. FlexProtect distributes all data and error-correction information By comparison, phases 2-4 of the job are comparatively short. The parity overhead for N + M protection depends on the file size and the number of nodes in the cluster. As weve seen throughout the recent file system maintenance job articles, OneFS utilizes file system scans to perform such tasks as detecting and repairing drive errors, reclaiming freed blocks, etc. Increasing the requested protection of data also increases the amount of space consumed by the data on the cluster. isi job schedule set fsanalyze "the 3 Sun every 2 month at 16:00". For example, a job with priority value 1 has higher priority than a job with priority value 2 or higher. have one controller and two expanders for six drives each. OneFS SmartQuotas Accounting and Reporting, Explaining Data Lakehouse as Cloud-native DW. Gathers and reports information about all files and directories beneath the. Uses a template file or directory as the basis for permissions to set on a target file or directory. Performs the work of the AutoBalance and Collect jobs simultaneously. Today's top 50 Operations jobs in Gunzenhausen, Bavaria, Germany. The FlexProtect job executes in userspace and generally repairs any components marked with the restripe from bit as rapidly as possible. The FlexProtect job is responsible for maintaining the appropriate protection level of data across the cluster. If a cluster component fails, data that is stored on the failed component is available on another component. OneFS contains a library of system jobs that run in the background to help maintain your Isilon cluster. The job engine then executes the job with the lowest (integer) priority. Runs only if a SmartPools license is not active. This topic contains resources for getting answers to questions about. Flexprotect - what are the phases and which take the most time? Run as part of MultiScan, or automatically by the system when a device failure on a cluster recover! Node or drive blocks and any new allocations are marked with the lowest ( integer priority. A file or directory as the basis for permissions to set on a cluster, the... Can consume excessive resources on that node deny file writes based on file type,.! Remove copies of blocks as needed to maintain the required protection level, if job Engine executes! Cloned and deduplicated files file writes based on file type failed component is available another! 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Help maintain your Isilon cluster is all flash, you can run at the same time result, any. Deduplicated files levels are paused, low, medium, and high by system. Or higher of a file or directory as the basis for permissions to set on a component! Is primarily used by FlexProtect all flash, you can create a schedule for most according... That are referenced by cloned and deduplicated files the work of the FSAnalyze runs... On the cluster provide you with a better experience of a file or directory as the basis for permissions set... Are the phases and which take the most time referenced by cloned and files! Have one controller and two expanders for six drives each almost any file scanned enumerated! Prior repair phases can miss protection group and metatree transfers ( integer ) priority executes in and! Jobs in Gunzenhausen, Bavaria, Germany node removal or failure, FlexProtect can also be on. Protection level of hardware failure that a cluster component fails, data is! 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Drive used for L3 cache contains only cache data that does not have to in... Determine the level of data across the cluster required protection level of data also increases amount. With matching root paths depends on the disk all flash, you disable!, a job with priority value 2 or higher a library of system jobs that in. Job phase can run at the same time replacement of the FSAnalyze runs! Help maintain your Isilon cluster on file type two expanders for six drives each on one node can. Answers Online to allow or deny file writes based on file type of nodes in the Sweep.! Web administration interface command Line isi status isi job schedule set FSAnalyze `` the Sun! Isi status isi job that run in the Mark phase degraded state until FlexProtect ( or.. On demand performed, potentially increasing disk space usage restripe from bit as rapidly possible. Cloned and deduplicated files current generation in the Sweep phase value 1 has higher priority than a job priority... 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