Networker

[Networker] Summary: Netapp NDMP backups with NW7.0

2003-07-02 13:36:59
Subject: [Networker] Summary: Netapp NDMP backups with NW7.0
From: "Shelley L. Shostak" <sls AT QSTECH DOT COM>
To: NETWORKER AT LISTMAIL.TEMPLE DOT EDU
Date: Wed, 2 Jul 2003 10:36:53 -0700
Folks,

I seem to have Networker working, but I won't hold my breath.

Symptoms:
        When mounting a tape in NDMP device and verifying label the following
        error occurs (/nsr/logs/messages):

          Jun 30 18:00:32 nickel logger: NetWorker media: (info) ndmp tape mtio
          failed, I/O error

        The tape is then marked full and another tape is used.

Details:
        NW 7.0 Build 322 Network Edition
        RH 7.2 (kernel 2.4.18-17.7.x) on Dell Poweredge 2550
        Spectralogic 10K (scsi, 40 slots, 4 drives
        2 AIT-2 drives connected to NetApp
        2 AIT-3 drives connected to NetApp
        NetApp 720 (6.2R2)

Here is what I changed:
        - eject/sleep/unload sleep times of 90 seconds (decrease from 120)
        - change NDMP from version 3 to version 4 on Netapp

I have not yet tested to see whether any of these tapes are readable.  I
suspect that the "prematurely full" tapes will be unreadable.

I am still uneasy about this.  Yesterday I did a "nsrjb -HEv" and the linux
box hung.  There are no messages anywhere to indicate what the problem is.
And I got a weird error (once) when running NDMP backups where backups were
running fine and then the NetApp decided that it was unable to connect or
authorize the client for the second NetApp and quit.  This was after
successfully backing up 3 of 9 qtrees.

I will open a case with Legato when I have some other fires under control.

Shelley

--
    Shelley L. Shostak, PhD                     sls AT qstech DOT com
    Voice: (408) 574-3389
    Lead Unix Administrator                     Quicksilver Technology

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