[EMAIL PROTECTED] ~]# lfs df -h
UUID bytes Used Available Use% Mounted on
testfs-MDT0000_UUID 130.4G 460.1M 122.5G 0% /mnt/lustre[MDT:0]
testfs-OST0000_UUID 18.3G 17.4G 2.0M 94% /mnt/lustre[OST:0]
testfs-OST0001_UUID 18.3G 15.5G 2.0G 84% /mnt/lustre[OST:1]
testfs-OST0002_UUID 36.7G 15.5G 19.4G 42% /mnt/lustre[OST:2]
testfs-OST0003_UUID 36.7G 15.5G 19.4G 42% /mnt/lustre[OST:3]
filesystem summary: 110.0G 63.8G 40.7G 57% /mnt/lustre
[EMAIL PROTECTED] ~]#
Now, supposing that i want to REPLACE OST:0 (which is full) with a larger one
block device and keep all data intact, i do:
1. umount /mnt/lustre on all our clients - ok
2. go to shd1 (OSS machine which is keeping hdb1 as OST:0)
[EMAIL PROTECTED] ~]# mount
...
/dev/hdb2 on /mnt/lustre/ost1_02 type lustre (rw,_netdev)
/dev/hdb1 on /mnt/lustre/ost1_01 type lustre (rw,_netdev)
[EMAIL PROTECTED] ~]# umount /dev/hdb1
[EMAIL PROTECTED] ~]# mount /dev/hdb1 -t ext3 /mnt/ost_old
mount: wrong fs type, bad option, bad superblock on /dev/hdb1,
missing codepage or other error
In some cases useful info is found in syslog - try
dmesg | tail or so
[EMAIL PROTECTED] ~]#
[EMAIL PROTECTED] ~]# dmesg |tail -1
EXT3-fs: hdb1: couldn't mount because of unsupported optional features (40).
[EMAIL PROTECTED] ~]#
So, i can't mount /dev/hdb1 as EXT3, as explained on section "22.3.13
Replacing An Existing OST or MDS" in order to migrate data from it to another
volume!
Somebody can help me?
Regards,
Alx
_______________________________________________
Lustre-discuss mailing list
[email protected]
http://lists.lustre.org/mailman/listinfo/lustre-discuss
