USCSI 320 disk mirroring

[Carlos_172]

Hello.

We have a DS2100. This system contains 4 disks. Disks are mirrored among them. All have same capacity. However, one of they is a USCSI 320, while the others are USCSI 160. We have detect some problems in the disk that mirror the USCSI 320. Solution could be replace the USCSI 160 by USCSI 320?. I say this because we have another USCSI 320 disk. Thanks a lot.

[Robert-Jan Goossens · Accepted solution]

Hi Carlos,

Have a look at this doc.

Title: Advisory: DS21XX and DS2300 Disk Systems Do Not Support U320 Speeds - Importance: CRITICAL, This Advisory addresses a potential data integrity issue.
Document ID: OD041111_CW01

http://www4.itrc.hp.com/service/cki/docDisplay.do?docLocale=en_US&docId=200000076966737

Regards,
Robert-Jan

[Robert-Jan Goossens]

add on public link.

http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?lang=en&cc=us&objectID=PSD_OD041111_CW01

[Carlos_172]

ioscan throws:
H/W Path Class Description
===================================================
root
0 ioa System Bus Adapter (582)
0/0 ba Local PCI Bus Adapter (782)
0/0/0/0 lan HP PCI 10/100Base-TX Core
0/0/1/0 ext_bus SCSI C896 Fast Wide Single-Ended
0/0/1/0.1 target
0/0/1/0.1.0 disk HP DVD-ROM 304
0/0/1/0.7 target
0/0/1/0.7.0 ctl Initiator
0/0/1/0.8 target
0/0/1/0.8.0 disk SEAGATE ST3146707LC
0/0/1/0.10 target
0/0/1/0.10.0 disk SEAGATE ST3146807LC
0/0/1/0.12 target
0/0/1/0.12.0 disk SEAGATE ST3146707LC
0/0/1/0.14 target
0/0/1/0.14.0 disk SEAGATE ST3146707LC


I don't see A7173A adapter's path. Please help.

[Robert-Jan Goossens]

sorry Carlos, my mistake i did not completly read the manual.

http://h20000.www2.hp.com/bc/docs/support/SupportManual/c00223150/c00223150.pdf

U320 disks are supported, but will only run at 160 MB/s speeds only.

Could you post what kind of errors you are getting?

Robert-Jan

[Carlos_172]

SCSI: Async write error -- dev: b 31 0x00a000, errno: 126, resid: 4096,
blkno: 104013268, sectno: 208026536, offset: 3430371328, bcount: 4096.

SCSI: Async write error -- dev: b 31 0x00a000, errno: 126, resid: 4096,
blkno: 104008504, sectno: 208017008, offset: 3425492992, bcount: 4096.
LVM: Failed to automatically resync PV 1f00a000 error: 5
LVM: Recovered Path (device 0x1f00a000) to PV 1 in VG 1.
LVM: Restored PV 1 to VG 1.

SCSI: Write error -- dev: b 31 0x00a000, errno: 126, resid: 8192,
blkno: 138831432, sectno: 277662864, offset: 429465600, bcount: 8192.

SCSI: Async write error -- dev: b 31 0x00a000, errno: 126, resid: 8192,
blkno: 104362744, sectno: 208725488, offset: 3788234752, bcount: 8192.

SCSI: Async write error -- dev: b 31 0x00a000, errno: 126, resid: 4096,
blkno: 104382652, sectno: 208765304, offset: 3808620544, bcount: 4096.

SCSI: Async write error -- dev: b 31 0x00a000, errno: 126, resid: 4096,
blkno: 104376472, sectno: 208752944, offset: 3802292224, bcount: 4096.

SCSI: Async write error -- dev: b 31 0x00a000, errno: 126, resid: 4096,
blkno: 104151940, sectno: 208303880, offset: 3572371456, bcount: 4096.

SCSI: Async write error -- dev: b 31 0x00a000, errno: 126, resid: 4096,
blkno: 104201256, sectno: 208402512, offset: 3622871040, bcount: 4096.

SCSI: Async write error -- dev: b 31 0x00a000, errno: 126, resid: 4096,
blkno: 104201248, sectno: 208402496, offset: 3622862848, bcount: 4096.

SCSI: Async write error -- dev: b 31 0x00a000, errno: 126, resid: 4096,
blkno: 104201244, sectno: 208402488, offset: 3622858752, bcount: 4096.

SCSI: Async write error -- dev: b 31 0x00a000, errno: 126, resid: 4096,
blkno: 104201236, sectno: 208402472, offset: 3622850560, bcount: 4096.

SCSI: Async write error -- dev: b 31 0x00a000, errno: 126, resid: 4096,
blkno: 104201224, sectno: 208402448, offset: 3622838272, bcount: 4096.

SCSI: Async write error -- dev: b 31 0x00a000, errno: 126, resid: 4096,
blkno: 104201220, sectno: 208402440, offset: 3622834176, bcount: 4096.

SCSI: Async write error -- dev: b 31 0x00a000, errno: 126, resid: 4096,
blkno: 104191672, sectno: 208383344, offset: 3613057024, bcount: 4096.

SCSI: Async write error -- dev: b 31 0x00a000, errno: 126, resid: 4096,
blkno: 104191664, sectno: 208383328, offset: 3613048832, bcount: 4096.

SCSI: Async write error -- dev: b 31 0x00a000, errno: 126, resid: 4096,
blkno: 104191656, sectno: 208383312, offset: 3613040640, bcount: 4096.

SCSI: Async write error -- dev: b 31 0x00a000, errno: 126, resid: 4096,
blkno: 104191648, sectno: 208383296, offset: 3613032448, bcount: 4096.

SCSI: Async write error -- dev: b 31 0x00a000, errno: 126, resid: 4096,
blkno: 104191640, sectno: 208383280, offset: 3613024256, bcount: 4096.

SCSI: Async write error -- dev: b 31 0x00a000, errno: 126, resid: 4096,
blkno: 104191632, sectno: 208383264, offset: 3613016064, bcount: 4096.

SCSI: Async write error -- dev: b 31 0x00a000, errno: 126, resid: 4096,
blkno: 104191624, sectno: 208383248, offset: 3613007872, bcount: 4096.

SCSI: Async write error -- dev: b 31 0x00a000, errno: 126, resid: 4096,
blkno: 104191616, sectno: 208383232, offset: 3612999680, bcount: 4096.

SCSI: Async write error -- dev: b 31 0x00a000, errno: 126, resid: 8192,
blkno: 101766328, sectno: 203532656, offset: 1129504768, bcount: 8192.

SCSI: Async write error -- dev: b 31 0x00a000, errno: 126, resid: 4096,
blkno: 2953164, sectno: 5906328, offset: 3024039936, bcount: 4096.

SCSI: Read error -- dev: b 31 0x00a000, errno: 126, resid: 2048,
blkno: 8, sectno: 16, offset: 8192, bcount: 2048.
LVM: vg[1]: pvnum=1 (dev_t=0x1f00a000) is POWERFAILED

SCSI: Write error -- dev: b 31 0x00a000, errno: 126, resid: 262144,
blkno: 104059520, sectno: 208119040, offset: 3477733376, bcount: 262144.

SCSI: Write error -- dev: b 31 0x00a000, errno: 126, resid: 75776,
blkno: 2326, sectno: 4652, offset: 2381824, bcount: 75776.
LVM: Failed to automatically resync PV 1f00a000 error: 5
LVM: Recovered Path (device 0x1f00a000) to PV 1 in VG 1.
LVM: Restored PV 1 to VG 1.

[Robert-Jan Goossens]

Carlos,

This looks like your disk is dying

# diskinfo -v /dev/rdsk/c0t10d0

# dd if=/dev/rdsk/c0t10d0 of=/dev/null bs=1024k

is the dd reporting an error ?

Robert-Jan

[Carlos_172]

0/0/1/0 ext_bus SCSI C896 Fast Wide Single-Ended is the bus where all disks are connected. It means that maximum speed is 20MB/seg, regardless disks U160 and U320 SCSI?