Compaq 157770-001 - DAT Drive 20/40 Tape Release note

Brand: Compaq

Model: 157770-001 - DAT Drive 20/40 Tape

Type: Release note

HP StorageWorks DAT 160 SAS Tape

Drives releas

enotes

Pa rt number: Q1587–90919

irst edition: July 2008

Description

The release includes updated ﬁrmware for DAT 160 SAS tape drives.

HP StorageWorks Librar y and Tape Tools (HP L&TT) must be used to download ﬁrmware to the tape drive.

Drive ﬁrmware version: WS86

Update recom

mendation

Recommended

Supersedes WS77

Product models

• HP StorageWorks DAT 160 SAS Internal Q1587A

• HP StorageWorks DAT 160 SAS External Q1588A

Operating s

ystems

• Operating systems supported by HP StorageWorks Library & Tape Tools. See

ttp://www.hp.com/support/tapetools.

Languages

• English (American)

• English (International)

Driveresetissuewithqueuedcommands

The error was occurring because DDS tape drives do not support command queuing. If software

applications issued inquiry commands whilst a rewind or space command was being performed, the

previous ﬁrmware could not execute an inquiry command before the command timed out. Since timeouts

are normally indicative of a more serious problem, the HBA then issued a hard reset which also aborts

the rew

ind (or space command).

The new ﬁrmware has been modiﬁed to execute an inquiry command while a rewind (or space) is

in progress.

Missing Filemark (FM) when reading

All records in the sequence were returned correctly but the Filemark was sometimes ignored. This issue

has now been ﬁxed.

Pressing Eject hangs drive after 17.4 days inactivit y

If there is a cartridge in the drive and there has been no tape activity for a m inimum of 17.4 days, the

READY LED will ﬂash continuously when the Eject button is pressed and there will be no attempt by the

driv

etoejectthetape.AllSCSIcommandswillhang.Thedrivewillremaininthisstateforafurther17.4

days when the cartridge will be ejected.

This problem has now been ﬁxed.

HP StorageWorks DAT 160 SAS Tape Drives release notes

Installation instructions

Use HP StorageWo

rks Library & Tape Tools (L&TT) to update the tape drive ﬁrmware . You can download

L&TT from h

ttp:

//www.hp.com/support/tapeto ols. Online help and instructions are included with

the utility.

NOTE:

Once the download has started, do NOT power off the unit or interrupt the ﬁrmware download process

until the downl

oad is complete. Doing so could leave the product in a non-usable state.

The ﬁrmware ﬁles can also be obtained on the external HP support website: http://www.hp.com/

support/storage . Select your product from the list and follow the instructions from the Web page.

NOTE: If you have trouble ﬁnding your product or ﬁrmware, use the Product Search function from

ttp//www.hp.com/support /download s.

Determining current version

You can check your current ﬁrmware revision from H P Library & Tape Tools (L&TT). Launch L&TT, select the

productfromthelowerlefthandframeandclickontheidentitybuttonatthetop(ifnecessary).

Firmware Version

Released

Status

WS77

7/2007

Active

WS86

8/2008

Active

Effective date

August 1, 2008

Compaq 157770-001 - DAT Drive 20/40 Tape Release note

Compaq 157770-001 - DAT Drive 20/40 Tape Release note

Compaq 157770-001 - DAT Drive 20/40 Tape Release note

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