[CentOS] SAN help

Paras pradhan pradhanparas at gmail.com
Fri Jan 8 05:29:14 UTC 2010


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 at 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 <eero.volotinen at iki.fi>wrote:

> On 1/8/10 7:21 AM, Paras pradhan wrote:
> >
> >
> > On Thu, Jan 7, 2010 at 11:08 PM, Eero Volotinen <eero.volotinen at iki.fi
> > <mailto:eero.volotinen at iki.fi>> 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
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