Servers:Musashi: Difference between revisions
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swap = /dev/md/5 (swap) | swap = /dev/md/5 (swap) | ||
Software-RAID constituents: | |||
musashi proc # cat mdstat | |||
Personalities : [raid1] | |||
md0 : active raid1 hdc1[1] hda1[0] | |||
64192 blocks [2/2] [UU] | |||
md2 : active raid1 hdc6[1] hda6[0] | |||
10000320 blocks [2/2] [UU] | |||
md3 : active raid1 hdc7[1] hda7[0] | |||
10000320 blocks [2/2] [UU] | |||
md4 : active raid1 hdc8[1] hda8[0] | |||
10000320 blocks [2/2] [UU] | |||
md5 : active raid1 hdc9[1] hda9[0] | |||
995904 blocks [2/2] [UU] | |||
md1 : active raid1 hdc5[1] hda5[0] | |||
8056448 blocks [2/2] [UU] | |||
unused devices: <none> | |||
Hardware-RAID (Arena EX3) mappings: | |||
/mnt/raid3 = /dev/sdb1 (xfs) | /mnt/raid3 = /dev/sdb1 (xfs) | ||
/mnt/raid4 = /dev/sdc1 (xfs) | /mnt/raid4 = /dev/sdc1 (xfs) | ||
/mnt/holding = /dev/sda1 (xfs) | /mnt/holding = /dev/sda1 (xfs) | ||
/ | /export/mirror = /mnt/raid4/mirror | ||
| Line 31: | Line 58: | ||
grub> setup (hd1) | grub> setup (hd1) | ||
grub> quit | grub> quit | ||
To | |||
To verify GRUB installation: | |||
grub | grub | ||
grub> find /boot/grub/stage1 | grub> find /boot/grub/stage1 | ||
| Line 38: | Line 66: | ||
grub> | grub> | ||
Note well - in /boot/grub/grub.conf we point to the software-RAID root, | Note well - in /boot/grub/grub.conf we point to the software-RAID root, not each individual drive | ||
real_root=/dev/md1 | real_root=/dev/md1 | ||
==Machine info== | |||
dual Xeon 2.6GHz, 1GB, SCSI-attached 1TB RAID, | |||
SCSI-attached 100GB tape-drive, 3 x GigE, software OS-RAID, | |||
36GB SCSI holding-disk | |||
Running Gentoo Linux | |||
Secondary file- and home-dir-server for Research | |||
Into service July 2003 | |||
Latest revision as of 03:13, 8 February 2008
GRUB sometimes screws up :-(
Drive mapping:
swap = /dev/hda9 / = /dev/hda5 /boot = /dev/hda1 /usr = /dev/hda6 /var = /dev/hda7
Software-RAID (RAID-1, mirror) mappings:
/boot = /dev/md/0 (ext2) / = /dev/md/1 (ext3) /usr/ = /dev/md/2 (ext3) /var/ = /dev/md/3 (ext3) /tmp = /dev/md/4 (ext3) swap = /dev/md/5 (swap)
Software-RAID constituents:
musashi proc # cat mdstat
Personalities : [raid1]
md0 : active raid1 hdc1[1] hda1[0]
64192 blocks [2/2] [UU]
md2 : active raid1 hdc6[1] hda6[0]
10000320 blocks [2/2] [UU]
md3 : active raid1 hdc7[1] hda7[0]
10000320 blocks [2/2] [UU]
md4 : active raid1 hdc8[1] hda8[0]
10000320 blocks [2/2] [UU]
md5 : active raid1 hdc9[1] hda9[0]
995904 blocks [2/2] [UU]
md1 : active raid1 hdc5[1] hda5[0]
8056448 blocks [2/2] [UU]
unused devices: <none>
Hardware-RAID (Arena EX3) mappings:
/mnt/raid3 = /dev/sdb1 (xfs) /mnt/raid4 = /dev/sdc1 (xfs) /mnt/holding = /dev/sda1 (xfs) /export/mirror = /mnt/raid4/mirror
grub grub> root (hd0,0) grub> setup (hd0) grub> root (hd1,0) grub> setup (hd1) grub> quit
To verify GRUB installation:
grub grub> find /boot/grub/stage1 (hd0,0) (hd1,0) grub>
Note well - in /boot/grub/grub.conf we point to the software-RAID root, not each individual drive
real_root=/dev/md1
Machine info
dual Xeon 2.6GHz, 1GB, SCSI-attached 1TB RAID,
SCSI-attached 100GB tape-drive, 3 x GigE, software OS-RAID,
36GB SCSI holding-disk
Running Gentoo Linux
Secondary file- and home-dir-server for Research
Into service July 2003