Alex wrote: > [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] ~]# > Try mount -t ldiskfs /dev/hdb1 /mnt/ost_old > [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 >
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