Hi

Linode are telling my backups are failing because I am trying to backup a jmicron_raid_member filesystem. It failed a few days ago.

Thing is, I have not done anything on the server. I have not added this. The server has been for a very long time a standard CentOS install on an ext3 filesystem, using Webmin and Virtualmin to manage it, I use it for emails and one web application. I have had it up for quite some time now, maybe a year or so, no problems, backups always worked. Then a few days ago I was told this jmicron_raid_member filesystem exists and backups failed.

The server has not had any downtime for this jmicron_raid_member to be introduced.

So I wondered if anyone knows anything about this filesystem, where it comes from/how its introduced. If it can be introduced with no downtime, why cant we reverse it with no downtime (Linode are saying I need to create a new server and copy data from this to the new one).

How does one find this listed? Its not listed in Linode Manager or on the server anywhere using fdisk/dh

Thanks!

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Web Development Agency in South Wales

This may help:

http://askubuntu.com/questions/249158/e ... aid-member

Linode have passed it to the backup team to investigate because I don't think that filesystem is on my server.

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Web Development Agency in South Wales

Linode wont help much apart from telling me to restore a 5 day old backup and then move all data over... not good as its an email server. Guess I am on my own. I have raised this at the Virtualmin forum too, as that and Webmin is the software I have on the server to manage it. They are usually very good at providing help.

So this following command does show the wrong filesystem, even though its not shown anywhere else:

[root@mail ~]# blkid
/dev/xvda: TYPE="jmicron_raid_member" 
/dev/xvdb: UUID="b3fda3b3-028c-433b-acc3-9c62cb315036" TYPE="swap" 

ext3 showing up OK with the following:

[root@mail ~]# mount
/dev/xvda on / type ext3 (rw,noatime,grpquota,errors=remount-ro,usrquota)
/proc on /proc type proc (rw)
sysfs on /sys type sysfs (rw)
devpts on /dev/pts type devpts (rw,gid=5,mode=620)
tmpfs on /dev/shm type tmpfs (rw,noexec,nodev)
none on /proc/sys/fs/binfmt_misc type binfmt_misc (rw)

[root@mail ~]# df -T
Filesystem     Type  1K-blocks     Used Available Use% Mounted on
/dev/xvda      ext3   98760300 32138736  65618104  33% /
tmpfs          tmpfs   2047076      112   2046964   1% /dev/shm

[root@mail ~]# sudo file -sL /dev/xvda
/dev/xvda: Linux rev 1.0 ext3 filesystem data (needs journal recovery) (large files)

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Web Development Agency in South Wales