We're running on a Sun E450 with Solaris 2.6 and NetBackup 3.1.1
with the latest patches from Sun. We also have a Qualstar 46120
with 3 AIT-1 tape drives.
We're seeing "(84) media write error" periodically in NBU.
It happens to any one of the 3 drives ... resulting in the tape
drive being taken off-line (down in NBU). And it happens on
older media and newer media. We initially purchased 60
Sony SDX-T3N tapes about 2 years ago and another 60 SDX1-25C
tapes about 6 months ago. Both tapes are the same length and
capacity. All media is in the same volume pool. This configuration
has been working for over a year.
More clues form /var/adm/messages ...
unix: Error for Command: write Error Level: Fatal
unix: Requested Block: 20547 Error Block: 20547
unix: Vendor: SONY Serial Number:
unix: Sense Key: Media Error
unix: ASC: 0x52 (cartridge fault), ASCQ: 0x0, FRU: 0x0
tl8cd[24771]: TL8(0) move_medium error
tl8cd[24771]: TL8(0) Sense Key: Illegal Request (5h)
tl8cd[24771]: TL8(0) ASC 3bh, ASCQ 90h
tl8d[22465]: TL8(0) drive 3 (device 2) is being DOWNED,
status: Robotic dismount failure
tl8d[22465]: Check integrity of the drive, drive path, and media
And here's the st.conf entry (from this mailing list) ...
"SONY SDX-300C", "Sony 8mm AIT", "SONY_AIT";
SONY_AIT = 1,0x34,0,0x9639,4,0x13,0x0,0x8C,0x8C,3;
We've done some testing but haven't concluded anything.
Any ideas would be appreciated. Thanks.
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Gary A. Moro email: gary AT cse.ucsc DOT edu
UNIX Systems Manager phone: (831) 459-4538
School of Engineering FAX: (831) 429-9820
UC Santa Cruz
Santa Cruz, CA 95064
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