[LU-9292] mount.lustre doesn't handle partitioned MD arrays correctly Created: 05/Apr/17  Updated: 26/Apr/17  Resolved: 26/Apr/17

Status: Resolved
Project: Lustre
Component/s: None
Affects Version/s: None
Fix Version/s: Lustre 2.10.0

Type: Bug Priority: Minor
Reporter: VIKRAM BABASO JADHAV (Inactive) Assignee: Nathaniel Clark
Resolution: Fixed Votes: 0
Labels: None

Issue Links:
Duplicate
Related
is related to LU-9405 mount.lustre parses device paths dumbly Resolved
Severity: 3
Rank (Obsolete): 9223372036854775807

 Description   

The set_blockdev_tunables function in lustre/utils/mount_lustre.c doesn't correctly parse the newer names of partitioned MD devices (e.g., /dev/md0p2) .. it looks like it's written to parse the older partitioned MD devices (e.g., /dev/md_d2p3).
This means that MD partions like /dev/md0p2 do not receive MD-level tunings that non-partitioned MD devices get (specifically stripe_cache_size), leading to a large performance hit.

 Comments   
Comment by Gerrit Updater [ 05/Apr/17 ]

jadhav.vikram (jadhav.vikram@seagate.com) uploaded a new patch: https://review.whamcloud.com/26399
Subject: LU-9292 utils: handle partitioned MD arrays correctly
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: aaeee334dc15c81ddea0fa180a227d6c9be81d44

Comment by Peter Jones [ 18/Apr/17 ]

Nathaniel

Could you please review this patch?

Thanks

Peter

Comment by Gerrit Updater [ 26/Apr/17 ]

Oleg Drokin (oleg.drokin@intel.com) merged in patch https://review.whamcloud.com/26399/
Subject: LU-9292 utils: handle partitioned MD arrays correctly
Project: fs/lustre-release
Branch: master
Current Patch Set:
Commit: 1582846e218a7c4953bc0af2165f0af103657a77

Comment by Peter Jones [ 26/Apr/17 ]

Landed for 2.10

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