Hi All,
I'm about to create a XFS file system on a MD RAID6 made up of 12 3T
drives.
This is the command line that I was planning to use:
# mkfs.xfs -l lazy-count=1 -s size=4096 -N /dev/md7
= sectsz=4096 attr=2, projid32bit=0
data = bsize=4096 blocks=7320776704,imaxpct=5
= sunit=128 swidth=1280 blks
naming =version 2 bsize=4096 ascii-ci=0
log =internal log bsize=4096 blocks=521728, version=2
= sectsz=4096 sunit=1 blks, lazy-count=1
realtime =none extsz=4096 blocks=0, rtextents=0
This is the MD examine for one of the drives:
Nitrogen:~# mdadm -E /dev/sda2
/dev/sda2:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x1
Array UUID : ee8cb70e:2f40f34f:79d46ade:4b12c78b
Creation Time : Tue Nov 1 17:03:38 2011
Raid Level : raid6
Raid Devices : 12
Avail Dev Size : 5856624640 (2792.66 GiB 2998.59 GB)
Array Size : 58566236160 (27926.56 GiB 29985.91 GB)
Used Dev Size : 5856623616 (2792.66 GiB 2998.59 GB)
Data Offset : 2048 sectors
Super Offset : 8 sectors
State : clean
Device UUID : 72fa45ca:775f244d:15b030fe:f569fe8c
Internal Bitmap : 8 sectors from superblock
Update Time : Thu Nov 3 11:07:39 2011
Checksum : 4c72bfd4 - correct
Events : 11029
Layout : left-symmetric
Chunk Size : 512K
Device Role : Active device 0
Array State : AAAAAAAAAAAA ('A' == active, '.' == missing)
# mkfs.xfs -V
mkfs.xfs version 3.1.4
System is Debian Squeeze with self compiled 3.0.8 kernel (64bit)
Should I change any default parameters to mkfs.xfs
If I didn't provide any important info let me know.
Thanks in advance,
K
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