Hi

Not sure if you have done this already but install multipath as the os sees multiple presented luns which needs to be tied up to one by multipath also do not use the rh drivers for you qlogic it's not recommended at all for any storage solutions.

Per

At Fredag, 08-01-2010 on 6:29 "Paras pradhan" wrote:

Yes here is th o/p of fdisk -l. Two Luns are assigned. one of 323 G and another of 359 G as seen blow. sda is my local disk. So do you think incorrect zoning can lead to this?

Thanks Paras.

----------------------------------------------------- [root@prd1 ~]# fdisk -l

Disk /dev/sda: 146.1 GB, 146163105792 bytes 255 heads, 63 sectors/track, 17769 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes

Device Boot      Start         End      Blocks   Id  System /dev/sda1   *           1          33      265041   83  Linux /dev/sda2              34        4210    33551752+  82  Linux swap / Solaris /dev/sda3            4211        6821    20972857+  83  Linux /dev/sda4            6822       17769    87939810    5  Extended /dev/sda5            6822       17769    87939778+  83  Linux

Disk /dev/sdb: 323.4 GB, 323459481600 bytes 255 heads, 63 sectors/track, 39325 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes

Device Boot      Start         End      Blocks   Id  System /dev/sdb1               1           2       16033+  83  Linux /dev/sdb2               3       39325   315861997+  83  Linux

Disk /dev/sdc: 359.3 GB, 359399424000 bytes 255 heads, 63 sectors/track, 43694 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes

Device Boot      Start         End      Blocks   Id  System /dev/sdc1               1       43694   350972023+  83  Linux

Disk /dev/sdd: 323.4 GB, 323459481600 bytes 255 heads, 63 sectors/track, 39325 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes

Device Boot      Start         End      Blocks   Id  System /dev/sdd1               1           2       16033+  83  Linux /dev/sdd2               3       39325   315861997+  83  Linux

Disk /dev/sde: 323.4 GB, 323459481600 bytes 255 heads, 63 sectors/track, 39325 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes

Device Boot      Start         End      Blocks   Id  System /dev/sde1               1           2       16033+  83  Linux /dev/sde2               3       39325   315861997+  83  Linux

Disk /dev/sdf: 359.3 GB, 359399424000 bytes 255 heads, 63 sectors/track, 43694 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes

Device Boot      Start         End      Blocks   Id  System /dev/sdf1               1       43694   350972023+  83  Linux

Disk /dev/sdg: 323.4 GB, 323459481600 bytes 255 heads, 63 sectors/track, 39325 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes

Device Boot      Start         End      Blocks   Id  System /dev/sdg1               1           2       16033+  83  Linux /dev/sdg2               3       39325   315861997+  83  Linux

Disk /dev/sdh: 323.4 GB, 323459481600 bytes 255 heads, 63 sectors/track, 39325 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes

Device Boot      Start         End      Blocks   Id  System /dev/sdh1               1           2       16033+  83  Linux /dev/sdh2               3       39325   315861997+  83  Linux

Disk /dev/sdi: 359.3 GB, 359399424000 bytes 255 heads, 63 sectors/track, 43694 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes

Device Boot      Start         End      Blocks   Id  System /dev/sdi1               1       43694   350972023+  83  Linux

Disk /dev/sdj: 323.4 GB, 323459481600 bytes 255 heads, 63 sectors/track, 39325 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes

Device Boot      Start         End      Blocks   Id  System /dev/sdj1               1           2       16033+  83  Linux /dev/sdj2               3       39325   315861997+  83  Linux

Disk /dev/sdk: 323.4 GB, 323459481600 bytes 255 heads, 63 sectors/track, 39325 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes

Device Boot      Start         End      Blocks   Id  System /dev/sdk1               1           2       16033+  83  Linux /dev/sdk2               3       39325   315861997+  83  Linux

Disk /dev/sdl: 359.3 GB, 359399424000 bytes 255 heads, 63 sectors/track, 43694 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes

Device Boot      Start         End      Blocks   Id  System /dev/sdl1               1       43694   350972023+  83  Linux

Disk /dev/sdm: 323.4 GB, 323459481600 bytes 255 heads, 63 sectors/track, 39325 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes

Device Boot      Start         End      Blocks   Id  System /dev/sdm1               1           2       16033+  83  Linux /dev/sdm2               3       39325   315861997+  83  Linux

On Thu, Jan 7, 2010 at 11:26 PM, Eero Volotinen wrote:

On 1/8/10 7:21 AM, Paras pradhan wrote:

On Thu, Jan 7, 2010 at 11:08 PM, Eero Volotinen > wrote:

On 1/8/10 6:38 AM, Paras pradhan wrote:      > My CentOS 5.4 box has a single HBA card with 2 ports

connected to my

> Storage. 2 Luns are assigned to my HBA card. Under /dev

instead of

> seeing 4 devices I can see 12 devices from sdb to sdm. I

am using

qlogic      > driver that is bulitin to the OS. Has any one seen this

kind of

situation?

Sounds like zoning problem ..

Storage is HDS and the LUN type created was of type netware. I don't know why this type but my storage administrator said its correct.

This

might be an issue?

Or if you can ellaborate how this is zoning problem it wud be great

help.

Are you sure that you can see correct luns? check the size ?

-- Eero _______________________________________________ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos