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Re: [Networker] Question on manually cleaning drive?
2009-07-14 16:12:31
Clark, Patti wrote:
> -----Original Message-----
From: EMC NetWorker discussion
[mailto:NETWORKER AT LISTSERV.TEMPLE DOT EDU] On Behalf Of George Sinclair
Sent: Tuesday, July 14, 2009 2:09 PM
To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
Subject: [Networker] Question on manually cleaning drive?
Hi,
Question here on using manual operations to clean a drive,
e.g. inventory.
When a drive on our tape library indicates that it needs to
be cleaned
(red led light), I usually run sjimm (or mtx) and move the
cleaner tape
from a designated slot into the device; it cleans, ejects, and then I
run the same command to move it back to the designated slot -
all well
and fine.
HOWEVER, what if a NW administrator needs to clean a drive, but they
don't have permission to run sjimm or mtx to manually move a
tape into a
drive? Obviously, they can just open the door to the tape library and
manually insert the tape into the drive, but I was wondering if they
could simply inventory the slot (from NW) that the cleaning
cartridge is in?
I'm thinking that they can't use 'load' or 'load without
mount' because
both of these options will expect there to be a label on the
tape or at
least expect it to be a known NW volume before it loads it, which a
cleaner is not. On the other hand, they could do an
inventory, but when
a cleaner tape is inserted into a drive, the drive
automatically ejects
it when it's done cleaning, but NW will also want to tell the
drive to
eject the tape when it's done inventorying it, so I'm
thinking NW might
wait, and then try to eject it, but it won't be able to because the
drive will have already ejected it, and an 'invalid argument' error
might result? At that point, the operator wouldn't be able to
move the
tape back to the slot since it's not completely in the drive.
--
George Sinclair
Voice: (301) 713-3284 x210
OK, I have to ask. Why do have to manually clean a drive? You have a tape
library. There are 2 auto-cleaning possibilities here - let the library handle
the cleaning or let networker handle the cleaning. I've only ever had to
manually clean a stand-alone tape device in the last 6 years.
I probably should have predicated my post with this answer first. OK, I
don't like the idea of NW doing the cleaning because I think the drives
have a better idea of when they need to be cleaned, so seems the over
cleaning could result. Might be better to just let the library do the
cleaning then, BUT I've never been able to get the library (STK L80) to
auto clean. I have a cleaner in one of the two designated cleaner slots,
with the proper cleaning barcode. The system sees it, and from the
library GUI panel, the cleaning function in the menu recognizes it; it
will export it, import it, etc. BUT it never cleans a drive when it
needs it. From time to time (not very often), I'll notice a red led
light 'C' on the affected drive with a tape in there, and the cleaner
tape is still sitting in its slot doing nothing. So, I just unmount the
tape in the drive and manually load the cleaner.
Patti Clark
DOE/OSTI
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--
George Sinclair
Voice: (301) 713-3284 x210
- The preceding message is personal and does not reflect any official or
unofficial position of the United States Department of Commerce -
- Any opinions expressed in this message are NOT those of the US Govt. -
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