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тАО02-08-2006 08:23 AM
тАО02-08-2006 08:23 AM
Question on rp3440 and its internal drives.
Even though both drives are the same configuration, the Seagate drives are 20% slower and this is impacting some of the financial business applications.
Anyone has any clues on why this is the case? Does it have to do with the speed of the disk drives? Thx in advance.
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тАО02-08-2006 08:40 AM
тАО02-08-2006 08:40 AM
Re: Question on rp3440 and its internal drives.
Could you post a diskinfo of one of the seagate disks?
# inscan -fnCdisk
# diskinfo -v /dev/rdsk/cxtydz
Regards,
Robert-Jan
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тАО02-08-2006 11:18 AM
тАО02-08-2006 11:18 AM
Re: Question on rp3440 and its internal drives.
Class I H/W Path Driver S/W State H/W Type Description
=========================================================================
disk 0 0/0/2/0.0.0.0 sdisk CLAIMED DEVICE TEAC DV-28E-C
/dev/dsk/c0t0d0 /dev/rdsk/c0t0d0
disk 1 0/1/1/0.0.0 sdisk CLAIMED DEVICE HP 73.4GST373453LC
/dev/dsk/c2t0d0 /dev/rdsk/c2t0d0
disk 2 0/1/1/0.1.0 sdisk CLAIMED DEVICE HP 73.4GST373453LC
/dev/dsk/c2t1d0 /dev/rdsk/c2t1d0
disk 3 0/1/1/1.2.0 sdisk CLAIMED DEVICE HP 73.4GST373453LC
/dev/dsk/c3t2d0 /dev/rdsk/c3t2d0
#####################
SCSI describe of /dev/rdsk/c3t2d0:
vendor: HP 73.4G
product id: ST373453LC
type: direct access
size: 71687369 Kbytes
bytes per sector: 512
rev level: HPC5
blocks per disk: 143374738
ISO version: 0
2nd rp3440:
Class I H/W Path Driver S/W State H/W Type Description
=========================================================================
disk 0 0/0/2/0.0.0.0 sdisk CLAIMED DEVICE TEAC DV-28E-C
/dev/dsk/c0t0d0 /dev/rdsk/c0t0d0
disk 1 0/1/1/0.0.0 sdisk CLAIMED DEVICE HP 73.4GMAS3735NC
/dev/dsk/c2t0d0 /dev/rdsk/c2t0d0
disk 2 0/1/1/0.1.0 sdisk CLAIMED DEVICE HP 73.4GMAS3735NC
/dev/dsk/c2t1d0 /dev/rdsk/c2t1d0
disk 3 0/1/1/1.2.0 sdisk CLAIMED DEVICE HP 73.4GMAS3735NC
/dev/dsk/c3t2d0 /dev/rdsk/c3t2d0
############################
SCSI describe of /dev/rdsk/c3t2d0:
vendor: HP 73.4G
product id: MAS3735NC
type: direct access
size: 71687369 Kbytes
bytes per sector: 512
rev level: HPC3
blocks per disk: 143374738
ISO version: 0
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тАО02-08-2006 07:58 PM
тАО02-08-2006 07:58 PM
Re: Question on rp3440 and its internal drives.
There is a firmware update for your seagate drives, maybe this could help.
http://www5.itrc.hp.com/service/patch/patchDetail.do?BC=patch.breadcrumb.main|patch.breadcrumb.search|&patchid=PF_DDISKFW0505&context=firmware:disk
This is an update for the following drives, details in the patch description
HP 73.4GST373207LC
HP 146 GST3146707LC
HP 18.2GST318453LC
HP 36.4GST336607LC
HP 36.4GST336753LC
HP 73.4GST373307LC
HP 73.4GST373453LC
HP 146 GST3146807LC
HP 73.4GMAT3073NC
HP 146 GMAT3147NC
HP 300 GMAT3300NC
HP 36.4GMAU3036NC
HP 73.4GMAU3073NC
HP 36.4GST336605FC
HP 73.4GST373405FC
HP 18.2GST318452FC
HP 36.4GST336752FC
But also if the fujitsu drives are 15k and the seagate drives are 10k then you could see a slight difference in access times here.
Andy
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тАО02-08-2006 08:22 PM
тАО02-08-2006 08:22 PM
Re: Question on rp3440 and its internal drives.
If you compare the specs of the two products, the Fujitsu disk should be a bit faster.
http://www.fel.fujitsu.com/home/v3__product.asp?pid=341
http://www.seagate.com/support/disc/specs/scsi/st373453lc.html
HTH,
Robert-Jan