Re: [Networker] SCSI Bus resets in SAN fabric environment

The NSR from HP can block SCSI bus resets.

S Ellis
OpenVMS Product Manager & Advisory Technical Marketing Engineer
LEGATO Software
3210, Porter Drive
Palo Alto
Ca 94304
USA
Phone: +1 (650) 842 9548
Mobile: +1 (408) 431 6997
MMS:   4084316997 AT mobile.att DOT net

> -----Original Message-----
> From: owner-networker AT LISTMAIL.TEMPLE DOT EDU [mailto:owner-
> networker AT LISTMAIL.TEMPLE DOT EDU] On Behalf Of Alain Richard
> Sent: Tuesday, August 31, 2004 1:12 PM
> To: NETWORKER AT LISTMAIL.TEMPLE DOT EDU
> Subject: SCSI Bus resets in SAN fabric environment
>
> Bus resets in SAN fabric environment
>
> Hi
>
> We have problem with scsi bus reset. In our case, some time, our
> Compaq tru64 cluster and our Windows cluster send SCSI BUS RESET.
> (see extract below)
>
> /var/adm/messages.1:Jul  4 03:55:46 rosalie root: [ID 702911
daemon.notice]
> NetWorker media: (info) EEI bus/device reset detected on
/dev/ntape/tape2_d1
> /var/adm/messages.1:Jul  4 03:55:50 rosalie root: [ID 702911
daemon.notice]
> NetWorker media: (info) EEI bus/device reset detected
> on /dev/ntape/tape2_d1 at opening. Rewinding tape
>
> Question:
> =========
> - we use a FC to SCSI router to connect our librairy. Is there a router on
> the market who can filter "SCSI BUS RESET" to prevent the tape drive from
> rewinding by mistake?
>
> Our kit is:
> ===========
> Compaq SAN (3 switch,1 SCSI router 2FC->4LVD)
> SUN e250 as Legato server DDS (SAN attach),(2 Compaq "jni" HBA)
> Compaq tru64 cluster as SAN storage node and DDS, (2 Compaq "emulex" HBA)
> Widows 2000 as SAN storage node and DDS, (2 Compaq "emulex" HBA)
> Widows 2000 cluster as SAN storage node and DDS, (2 Compaq "emulex" HBA)
> Widows 2000 cluster as SAN storage node and DDS, (2 Compaq "QLOGIC" HBA)
> 2 library STK L80 with 4 SDLT drives "LVD"
>
> Alain R.
>
> --
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