How do I find out what kind of raid is implemented.
unix syzadmin
unixsyzadmin at gmail.com
Thu Feb 16 03:52:30 UTC 2006
Hi,
Find below the ouput of df command & the contents of /proc/mdstat file.
[root at bangapps root]# df -k
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/sda6 4127076 318044 3599388 9% /
/dev/sda1 101089 25878 69992 27% /boot
/dev/sda9 107470556 74238944 27772328 73% /installers
/dev/vg00/LV00 102488500 92909036 4373448 96% /export/home
/dev/vg00/backup 102002024 16453584 80367000 17% /backup
/dev/vg00/logs 35886164 34063444 0 100% /logs
/dev/vg00/bealogs 5039616 4627776 155840 97% /bealogs
/dev/sda3 6048352 34604 5706508 1% /opt
none 2045776 0 2045776 0% /dev/shm
/dev/sda8 2063504 32872 1925812 2% /tmp
/dev/sda2 15116868 2067472 12281492 15% /usr
/dev/sda7 2063504 145112 1813572 8% /var
[root at bangapps root]# cd /proc
[root at bangapps proc]# ls -l mdstat
-rw-r--r-- 1 root root 0 Feb 16 09:02 mdstat
[root at bangapps proc]# more mdstat
Personalities : [raid5]
read_ahead 1024 sectors
Event: 1
md0 : active raid5 sde1[3] sdd1[2] sdc1[1] sdb1[0]
430115904 blocks level 5, 64k chunk, algorithm 0 [4/4] [UUUU]
unused devices: <none>
As you can see /logs is 100% full. I am asked to reduce /backup and
increase /logs.
Please let me know if the following commands would do the needful.
umount /backup
e2fsadm -L -40G /dev/vg00/backup
mount /dev/vg00/backup /backup
umount /logs
e2fsadm -L +40G /dev/vg00/logs
mount /dev/vg00/logs /logs
Thanks & Regards,
-GnanaShekar-
On 2/15/06, Ed Wilts <ewilts at ewilts.org> wrote:
>
> On Wed, Feb 15, 2006 at 05:40:17PM +0530, unix syzadmin wrote:
> > Hi,
> >
> > We have a RHEL AS3 server. How do I find out what kind of raid is
> > implemented.
>
> # cat /proc/mdstat
>
> I will guess (and it's only a guess!) that sda has no protection and
> that sdb/sdc/sdd/sde are a Raid-5 set. The guess is based on what I
> would have expected people to do with 4 drives but depending on your
> application and availability requirements, it could be a large stripe
> set or a pair of mirror sets. With a df display, my guess would have
> been more educated.
>
> --
> Ed Wilts, RHCE
> Mounds View, MN, USA
> mailto:ewilts at ewilts.org
> Member #1, Red Hat Community Ambassador Program
>
> --
> redhat-list mailing list
> unsubscribe mailto:redhat-list-request at redhat.com?subject=unsubscribe
> https://www.redhat.com/mailman/listinfo/redhat-list
>
More information about the redhat-list
mailing list