GPFS 3.5 PDF

Yogar Extract the IBM Spectrum Scale installation image so that all installation files rpm, deb, bff, msi, and so on are available. At this point, the code is at the upgraded level, but the cluster is not upgraded and new functions cannot be configured until the upgrade is completed. At this point, all code is at the upgraded level, but the cluster is vpfs upgraded and new functions cannot be configured until the upgrade is completed. For more information, see Setting up Cluster Export Services shared root file system. For GPFS-only configurations, the process is now complete.

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Problems fixed in GPFS 3. Fix the truncate 2 up failure issue on clone child file. Fix the mtime mismatch between AFM cache and home for zero sized files by copying mtime from openfile to child attributes. Fix the memory mapped read performance issue on AFM filesets. Fix a problem with copying key files in mmsdrrestore where the node that is being restored does not have prompt-less password access to the command issuing node.

The count of objects backed up can become inaccurate due to a persist ent problem that the reported number of objects backed up can be inflated by "dsmc" when it chooses to back up additional items such as parent directories.

Correct the count of objects backed up by carefully monitoring for any possible misrepresentation from the individual dsmc commands. Fix a dead lock during Ganesha queue clean up. Only affects clusters where a node is given the SNMP collector role. The deferred deletions started during recovery is single threaded and can take long time to process inodes in "being deleted" state.

Change this to use background deletion threads. Fix the cause of a crash of the GPFS mmsnmpagentd daemon. Fix offline fsck miscalculating link counts. Fix a deadlock resulted from running fsck and recovery in parallel. Fix a slow performance problem when the cache is full of unused dentries. Fix a regression which causes mmdf show 0 free blocks for suspended disks.

Enhance mmfsctl to work with topology vector failure group, NSD stanza file. Fix memory fault core dump in mmimgrestore during exit processing. The file size increase could be lost. Provide inode number information to an assertion within the low-level file write operation. When slab allocator creation fails, printk a warning message then fail mmfslinux.

Fix is recommended for P7IH customers and not relevant to other systems. The assert could happen if the file system manager node panics during log recovery. Fix a problem with flush buffer code that can lead to loss of data under some rare condition. Fix a rare hang problem when restarting GPFS from a token manager node and there are lots of filesystems mounted on other nodes.

Fix a problem that makes file blocks not distributed between nodes in metablock unit when the FPO file system does not have enough failure groups. If the umount is part of a shutdown we must stop NFS before unexporting the file system. AFM fix. Change in 3. Possible fix for mmautoload which may cause segmentation fault on Windows. Fix online replica compare tool to not report false replica mismatches when the file system has suspended disks. Fix a problem where the mmcrsnapshot and mmdelsnapshot commands timeout while a migrated file being deleted is waiting for recall.

Update allocation code to close a small timing window that can lead to file system corruption. The problem could occur when a client node panic while a new file system manager is in the middle of takeover. Fix a signal 11 problem in multi-cluster environment when gpfs daemon relay the fsync request through metanode but the OpenFile got stolen on the metanode in the middle. Fix a problem where the number of nodes allowed in a cluster is reset from to Prevent the user exit for the nodeLeave event to be called twice for the same failing node.

Fix a problem which may cause auto recovery fails to suspend some down disks. Fix command poor performance on cluster that has no security key. File cache filled-up with deleted objects Linux NFS Fix problems with mmapplypolicy termination that could hang, loop or segmentation fault. Fix handling of policy rules like Fix a problem in mmremotecluster command that fails to refresh authorized keys. This problem only affects file systems with data replication. Fix fsck incorrect handling of horizontal block allocation map file.

When a GSS logTipBackup pdisk fails, mmlsrecoverygroup output will now display offline as opposed to error for the affected logTipBackup vdisk. Fix bug in change license in CCR cluster.

Fix a problem that might cause auto recovery failure in FPO cluster. Ensure mmmigratefs tool does not assert trying to process deleted inodes that have stray xattr bits turned on.

Close a very small timing window where a FileBlockRandomWriteFetchHandlerThread waiting for a lock may not get awakened and cause a deadlock situation. Fix a problem that might cause no space error even if there is free disk space.

Protect fcntl kernel calls against non-privileged callers. GPFS command hardening. Fix a problem with directory lookup code that can cause FSErrInodeCorrupted error to be incorrectly issued. Correct tsbuhelper updateshadow command to recognize several circumstances when gencount changes even for files not yet backed up, or changed. FPO: Use disks evenly when doing mmrestripefs -r or mmdeldisk.

Fix a defect which may cause data consistency problem if one runs mmrestripefile after reducing replica level. Fix GNR bug related to a race condition that cause recovery failure during startup or failover. Fix a mmdeldisk problem caused by disabled quota files placed in the system pool. Fix a linux lookup crash issue. Apply if secrecy of file metadata pathnames, attributes and extended attributes is a concern. Fixed problem when deleting files from independent fileset which is causing unnecessary recalls when there are no snapshots.

Ensured to check null pointer when alloc memory pool fail while Ganesha is active. Fix is recommended in all GNR configurations. Fixed a problem where offline fsck fails assert!

Fixes a problem may cause mmchdisk start to hang if there are too many pools or diskless nodes in a FPO cluster. Reduce number of nsdMsgRdmaPrepare messages sent. Reduce CNFS failover time on systems with large list of exports. Allow disk addresses in inode 5 Extended Attribute File be be found bythe mmfileid command. Fixes a problem where fsck hits signal 8 during inode validation. Fix a stack corruption issue. Fix stale mount handling in case of home mount issues.

This fix improves the GPFS tool useability to use mmaddcallback command to constantly monitor a desired file system status.

Fix code to prevent a GPFS daemon assert that could occur after automatic remount of filesystems. The problem only occurs on Linux node when user issued GPFS commands to access the filesystem before automatic remount has completed. Fix AIO code path to properly manage vfs user count.

Incorrect vfs user count could prevent file system quiesce and cause some GPFS commands ex. Fix node failure recovery code to prevent a possible GPFS daemon assert. This problem could occur if file system manager node fails in the middle of restripe.

Fixed the startup code which will handle the locks in previous uncleaned mmshutdown better. Fix rare race condition that could result in a deadlock when moving data from the inode into a regular data block. Do not log fsstruct errors when offline fsck is running.

When performing automatic disk recovery, take into account the value of defaultHelperNodes when initiating file system restripe operations. Add additional checks to ensure the uniqueness of certain node attributes. Fixed assert in setDataValid becuase blockOffset larger than the start offset. Fix "subscript out of range" error in recoverFailedDisk. Fixed that problem that in a fs with different metadatablock size, but a disk in system pool is wrongly allowed to hold data.

Fix bug introduced in GPFS3. Correct --single-instance option for mmapplypolicy runs against directory. The fix avoids a bug where pdisks become "missing" due to descriptors being overwritten.

The fix is recommended if system firmware upgrades are applied. Fix lookup after rename moving file to. Too many RDMA connection created between nodes. The problem may cause files to exhibit inconsistency between cache and home. Fixed a timing issue which may cause AFM to miss replaying updates to home,if the update happens after a period of long inactivity.

Disable a three-phase protocol during which requests are dropped while the gateway nodes are temporarily made inactive so they can be marked clean. Update restripe code to better handle both replica in same failure group with one replica on suspended disk. Fix deadlock between recovery thrd and GW node change. Fix a rare case live lock which can happen when FPO file system is in low space situation. Improve handling and reporting of certain types of corrupted directory blocks.

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GPFS 3.5 PDF

Problems fixed in GPFS 3. Fix the truncate 2 up failure issue on clone child file. Fix the mtime mismatch between AFM cache and home for zero sized files by copying mtime from openfile to child attributes. Fix the memory mapped read performance issue on AFM filesets. Fix a problem with copying key files in mmsdrrestore where the node that is being restored does not have prompt-less password access to the command issuing node.

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Upgrading from GPFS 3.5

Akicage Regardless of which method you are using, if you want to install and configure CES protocols after upgrading to the latest level, you must create a CES shared root file system of size 4 GB or greater. The steps in this procedure are similar to the steps in the online upgrade procedure. For each node in the cluster, do the following steps. Repeat the preceding steps on each node in the cluster one by one after restarting GPFS.

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