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Archive for June, 2007

hdparm -t /dev/md0

June 22nd, 2007 No comments

/dev/md0:
Timing buffered disk reads: 1248 MB in 3.00 seconds = 415.65 MB/sec

Categories: file systems

MDADM Versions

June 16th, 2007 No comments
distro kernel version mdadm version
Ubuntu 6.06 LTS 2.6.15 1.12.0
Ubuntu 7.04 2.6.20 2.5.6
Ubuntu 8.04 LTS 2.6.24 2.6.3
Ubuntu 8.10 2.6.27 2.6.7
Ubuntu 9.04 2.6.28 2.6.7.1
Ubuntu 10.04 LTS 2.6.32 2.6.7.1
Ubuntu 10.10 2.6.35 2.6.7.1
Ubuntu 11.04 2.6.38 3.1.4
Ubuntu 12.04 3.2.0 3.2.3
CentOS 4.5 2.6.9 1.12.0
CentOS 5.0 2.6.18 2.5.4
CentOS 6.0 2.6.32 3.1.3
Debian 4.0 2.6.18 2.5.6
Debian 5.0 2.6.26 2.6.7.2
Debian 6.0 2.6.32 3.1.4
Fedora 7 2.6.21 2.6.1
Fedora 15 2.6.38 3.1.5

MDADM 2.x on kernels >2.6.17 supports online resizing of RAID 5 arrays :)

Categories: file systems