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DS2400 + 36GB Strangeness

Lee Hundley
Valued Contributor

DS2400 + 36GB Strangeness

Disks 1 - 9: HP 36.4GST336752FC
Disk with issues: HP 36.4GST336753FC

The diskinfo command shows some interesting stuff on the 2 different
drives:

diskinfo /dev/rdsk/c25d9t0

SCSI describe of /dev/rdsk/c25t9d0:
vendor: HP 36.4G
product id: ST336753FC
type: direct access
size: 70000000 Kbytes
bytes per sector: 520

Notice that the size is 70Gb and the bytest per secor is 520.
The other (normal) disks look like this:

SCSI describe of /dev/rdsk/c25t0d0:
vendor: HP 36.4G
product id: ST336752FC
type: direct access
size: 35566480 Kbytes
bytes per sector: 512
It is my firm belief that it is a mistake to hold any firm beliefs
5 REPLIES
Shaikh Imran
Honored Contributor

Re: DS2400 + 36GB Strangeness

Hi,
What is the o/p of diskinfo -b
on both the devices ?
If this doesn't match :
I can only say that it has to do something with the disk formating.
Do you have any data on the disk ?
(problematic disk)
Somehow the disk Geometry is not getting read
properly it could be the disk problem also.
If possible i would try to see this info
just after i do pvcreate on the disk provided that there is no data on the disk.
And worst & the last case i would try mediainit which takes a hell lot of time &
we are not sure about the results also.

Regards,













I'll sleep when i am dead.
Lee Hundley
Valued Contributor

Re: DS2400 + 36GB Strangeness

$ sudo diskinfo -b /dev/rdsk/c24t0d0
35566480
$ sudo diskinfo -b /dev/rdsk/c24t13d0
70000000

Theres no data on the disks as of yet, mediainit time?
It is my firm belief that it is a mistake to hold any firm beliefs
Slawomir Gora
Honored Contributor

Re: DS2400 + 36GB Strangeness

Hi,

probably you have to use Command View and
format drive

JBODfmt command


man JBODfmt
Slawomir Gora
Honored Contributor

Re: DS2400 + 36GB Strangeness

Hi,

JBODfmt - format a disk mechanism with a 512-byte block length.
Lee Hundley
Valued Contributor

Re: DS2400 + 36GB Strangeness

Thanks to all who responded. We replaced the drives with the older model number and all is working well.
It is my firm belief that it is a mistake to hold any firm beliefs