Hoping for a quick sanity check:
I have migrated all the files that were on a damaged OST and have recreated the
software raid array and put a lustre file system on it.
I am now at the point where I want to re-introduce it to the scratch file
system as if it was never
gone. I used:
tunefs.lustre --index=27 /dev/md4 to get the right index for the file system
(the information is
below). I just want to make sure there is nothing else I need to do before I
pull the trigger will
mounting it. (The things that have me concerned are the differences in the
flags, and less so the
"OST first_time update.)
<pre rebuild>
[r...@oss-scratch obdfilter]# tunefs.lustre /dev/md4
checking for existing Lustre data: found CONFIGS/mountdata
Reading CONFIGS/mountdata
Read previous values:
Target: scratch1-OST001b
Index: 27
Lustre FS: scratch1
Mount type: ldiskfs
Flags: 0x2
(OST )
Persistent mount opts: errors=remount-ro,extents,mballoc
Parameters: mgsnode=10.10.1...@o2ib mgsnode=10.10.1...@o2ib
failover.node=10.10.10...@o2ib
Permanent disk data:
Target: scratch1-OST001b
Index: 27
Lustre FS: scratch1
Mount type: ldiskfs
Flags: 0x2
(OST )
Persistent mount opts: errors=remount-ro,extents,mballoc
Parameters: mgsnode=10.10.1...@o2ib mgsnode=10.10.1...@o2ib
failover.node=10.10.10...@o2ib
exiting before disk write.
<after reformat and tunefs>
[r...@oss-scratch obdfilter]# tunefs.lustre --dryrun /dev/md4
checking for existing Lustre data: found CONFIGS/mountdata
Reading CONFIGS/mountdata
Read previous values:
Target: scratch1-OST001b
Index: 27
Lustre FS: scratch1
Mount type: ldiskfs
Flags: 0x62
(OST first_time update )
Persistent mount opts: errors=remount-ro,extents,mballoc
Parameters: mgsnode=10.10.1...@o2ib mgsnode=10.10.1...@o2ib
failover.node=10.10.10...@o2ib
Permanent disk data:
Target: scratch1-OST001b
Index: 27
Lustre FS: scratch1
Mount type: ldiskfs
Flags: 0x62
(OST first_time update )
Persistent mount opts: errors=remount-ro,extents,mballoc
Parameters: mgsnode=10.10.1...@o2ib mgsnode=10.10.1...@o2ib
failover.node=10.10.10...@o2ib
exiting before disk write.
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