raid1 (dmraid) - bad sectors - mount - smartd - complicated!
Hello,
i'm running a server with two disks in raid1.. it seems that some bad sectors have recently appeared on one of the disks.
Code:
Aug 9 08:26:19 linux smartd[3454]: Device: /dev/sda, FAILED SMART self-check. BACK UP DATA NOW!
Aug 9 08:26:19 linux smartd[3454]: Device: /dev/sda, 2 Currently unreadable (pending) sectors
Sadly it has affected my SVN repo and two important revisions are not accessible anymore! The moment I try to access those revisions the server hangs itself.
Now I am hoping that a good copy of those revisions is still on the second disk (sdb).
I have to keep the server online and cannot do a real maintenance at the time, so is there a way to maybe do a 1:1 image of sdb and mount it elsewhere ? Or while still running raid1 (also without getting the server offline), can I maybe simultaneously somehow mount sdb in read-only and try to access the missing svn revisions and backup it?
Some info (if you guys need any more detailed info, just let me know):
ps. thanks alot!
Code:
linux:/etc # cat /etc/SuSE-release
openSUSE 11.0 (i586)
VERSION = 11.0
linux:/etc # uname -r
2.6.25.20-0.4-pae
linux:/var/log # dmraid -s -s
*** Active Set
name : lsi_bhgdabdbca
size : 160836352
stride : 128
type : mirror
status : ok
subsets: 0
devs : 2
spares : 0
linux:/var/log # df -h
Dateisystem GröÃe Benut Verf Ben% Eingehängt auf
/dev/mapper/lsi_bhgdabdbca_part6
20G 11G 8,1G 57% /
udev 315M 152K 315M 1% /dev
/dev/mapper/lsi_bhgdabdbca_part5
69M 18M 48M 28% /boot
/dev/mapper/lsi_bhgdabdbca_part7
linux:/etc # fdisk -l
Platte /dev/sda: 82.3 GByte, 82348277760 Byte
255 Köpfe, 63 Sektoren/Spuren, 10011 Zylinder
Einheiten = Zylinder von 16065 Ã 512 = 8225280 Bytes
Disk identifier: 0x000a7b81
Gerät boot. Anfang Ende Blöcke Id System
/dev/sda1 1 129 1036161 82 Linux Swap / Solaris
/dev/sda2 * 130 10011 79377165 f W95 Erw. (LBA)
/dev/sda5 130 138 72261 83 Linux
/dev/sda6 139 2749 20972826 83 Linux
/dev/sda7 2750 10011 58331983+ 83 Linux
Platte /dev/sdb: 82.3 GByte, 82348277760 Byte
255 Köpfe, 63 Sektoren/Spuren, 10011 Zylinder
Einheiten = Zylinder von 16065 Ã 512 = 8225280 Bytes
Disk identifier: 0x000a7b81
Gerät boot. Anfang Ende Blöcke Id System
/dev/sdb1 1 129 1036161 82 Linux Swap / Solaris
/dev/sdb2 * 130 10011 79377165 f W95 Erw. (LBA)
/dev/sdb5 130 138 72261 83 Linux
/dev/sdb6 139 2749 20972826 83 Linux
/dev/sdb7 2750 10011 58331983+ 83 Linux
Platte /dev/dm-0: 82.3 GByte, 82348277248 Byte
255 Köpfe, 63 Sektoren/Spuren, 10011 Zylinder
Einheiten = Zylinder von 16065 Ã 512 = 8225280 Bytes
Disk identifier: 0x000a7b81
Gerät boot. Anfang Ende Blöcke Id System
/dev/dm-0p1 1 129 1036161 82 Linux Swap / Solaris
/dev/dm-0p2 * 130 10011 79377165 f W95 Erw. (LBA)
/dev/dm-0p5 130 138 72261 83 Linux
/dev/dm-0p6 139 2749 20972826 83 Linux
/dev/dm-0p7 2750 10011 58331983+ 83 Linux
Platte /dev/dm-1: 1061 MByte, 1061028864 Byte
255 Köpfe, 63 Sektoren/Spuren, 128 Zylinder
Einheiten = Zylinder von 16065 Ã 512 = 8225280 Bytes
Disk identifier: 0x00000000
Festplatte /dev/dm-1 enthält keine gültige Partitionstabelle
omitting empty partition (6)
Platte /dev/dm-2: 81.2 GByte, 81282216960 Byte
255 Köpfe, 63 Sektoren/Spuren, 9882 Zylinder
Einheiten = Zylinder von 16065 Ã 512 = 8225280 Bytes
Disk identifier: 0x00000000
Gerät boot. Anfang Ende Blöcke Id System
/dev/dm-2p1 1 9 72261 83 Linux
/dev/dm-2p2 10 2620 20972857+ 5 Erweiterte
/dev/dm-2p5 10 2620 20972826 83 Linux
Platte /dev/dm-3: 73 MByte, 73995264 Byte
255 Köpfe, 63 Sektoren/Spuren, 8 Zylinder
Einheiten = Zylinder von 16065 Ã 512 = 8225280 Bytes
Disk identifier: 0x00000000
Festplatte /dev/dm-3 enthält keine gültige Partitionstabelle
Platte /dev/dm-4: 21.4 GByte, 21476173824 Byte
255 Köpfe, 63 Sektoren/Spuren, 2610 Zylinder
Einheiten = Zylinder von 16065 Ã 512 = 8225280 Bytes
Disk identifier: 0x00000000
Festplatte /dev/dm-4 enthält keine gültige Partitionstabelle
Platte /dev/dm-5: 59.7 GByte, 59731951104 Byte
255 Köpfe, 63 Sektoren/Spuren, 7261 Zylinder
Einheiten = Zylinder von 16065 Ã 512 = 8225280 Bytes
Disk identifier: 0x00000000
Festplatte /dev/dm-5 enthält keine gültige Partitionstabelle
hello
my centOS newly installed system loading dmraid modules on startup
I did remove all LVM/raid things from system installation menus and after installation too but dmraid is still there
and he says: no raid disks found
also I did modprobe -r dm_raid45 and it do remove it but only until... (7 Replies)
Hello, firstly excuse for my poor english.
I have a busybox error when I try to run Debian 6. It's like Grub cannot find root (initramfs)
My system is:
- RAID0 with dmraid
- /boot ext2 (from moonOS installation --ubuntu based--)
- ext4 (moonOS wich have the Grub2 installation, where I... (0 Replies)
does anyone k ow the answer to this?
OS solaris 10
using the command raidctl -c c1t0d0 c1t1d0, this took about 4 mins to return to the prompt with "Volume c1t0d0 is created successfully!"
then using format I saw
AVAILABLE DISK SELECTIONS:
0. c1t0d0 <SUN72G cyl 14087 alt 2 hd 24 sec 424>... (1 Reply)
Good Morning,
We have a JS22 blade that we will be loading AIX5.3 onto it. We just discovered that the JS22 will only support one drive, so we are planning on booting this blade from the Fiber Channel SAN. Orginally we used 2 physical drives and set up RAID 1 and presented the logical drive... (0 Replies)
I have had a little issue with one of my disks, the usb cacble was pulled out and one of the external drives on it would no longer mount. I used First Aid and it verified and repaired both OK / nothing to do). After lots of messing around and not being able to mount I used Drive Genius 2 and that... (1 Reply)
I have a Netra T5220 Solaris 10 server with LDoms installed and enabled. RAID1 is enabled in the control domain with the following slices:
d50 -m d51 d52 1
d51 1 1 c1t0d0s5
d52 1 1 c1t1d0s5
d10 -m d11 d12 1
d11 1 1 c1t0d0s0
d12 1 1 c1t1d0s0
d20 -m d21 d22 1
d21 1 1 c1t0d0s1
d22 1 1... (14 Replies)
Hi guys,
please help me out my smartd service is not being up.
$ sudo /sbin/service smartd restart
Shutting down smartd:
Starting smartd:
$
Take a look of /etc/smartd.conf
/dev/sda -H -m... (1 Reply)
Hi guys,
i am facing this problem, I had configured NIS server in my network and it was ruing good..
but once i changed my IP after this problem started...
please help me out..!!
Oct 25 15:01:01 kickstart-server smartd: smartd shutdown failed
Oct 25 15:01:01 kickstart-server smartd:... (1 Reply)
Hi All,
I have installed GNU Red Hat Linux on my server. The installation is successful except that it gives out a display as following:
program smartd is using a deprecated SCSI ioctl, please convert it to SG_IO
Please let me know if anyone has come across such an error and know the... (1 Reply)
08-09-2012
raid1 (dmraid) - bad sectors - mount - smartd - complicated!