Networker

Re: [Networker] Tape Retirement Process....

2006-06-06 05:13:36
Subject: Re: [Networker] Tape Retirement Process....
From: Siobhán Ellis <siobhanellis AT HOTMAIL DOT COM>
To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
Date: Tue, 6 Jun 2006 19:10:31 +1000
Ahthe problem is what do you call a pass? DLT and LTO and their variants, go up and down a tape many times in a single "pass". Se ehow many tracks the media has, and then divide that 1 million head passes by that. That's how many write loads you could have, then when you read it adds more head passes..... see how it builds up?

Siobhan

From: Srinivas Rao <ssrinivas78 AT GMAIL DOT COM>
Reply-To: Legato NetWorker discussion <NETWORKER AT LISTSERV.TEMPLE DOT EDU>, Srinivas Rao <ssrinivas78 AT GMAIL DOT COM>
To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
Subject: [Networker] Tape Retirement Process....
Date: Tue, 6 Jun 2006 19:06:24 +1000

Dear All,
Could any one let me know when to retire SDLT tape media. According to
documents, SDLT tapes can be retired after 1 million passes or 10000
load/unload cycles. We are using SDLT media and we found some of the tapes,
which have neither crossed 1 million passes nor 10000 load/unload cycles,
are becoming defective(CRC errors) resulting backup failure and drive
failure. This has been happening many times. Is there any method to know the
tape is going to be defective? We are using Legato Networker7.1.2.

Are anybody using a process to retire tape media or is there any thumb rule
to retire it? It would be great if some body help me on this.

Thanks in Advance,
Srinivas Rao S.

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