[Veritas-bu] slow backup on LTO2 drives
2003-09-11 12:18:00
Subject: |
[Veritas-bu] slow backup on LTO2 drives |
From: |
fzhang AT hsc.unt DOT edu (Frank Zhang) |
Date: |
Thu, 11 Sep 2003 11:18:00 -0500 (CDT) |
can somebody tell me how to unsubscirbe this mailing list ?
Thanks a lot.
Frank
On Thu, 11 Sep 2003 Fabien.LIOU AT fr.thalesgroup DOT com wrote:
> Hello,
>
>
> I've a STK L700 library with 4 LTO2 drives.
> My master NBU server is under Solaris8 (with latest kernel patch and LTO2
> patch) with NBU4.5fp5
>
> Interfaces between drives and master are 2gigabit.
> Switch is a sphereon 4500
>
>
>
> My st.conf file is:
>
> tape-config-list=
>
> "IBM ULTRIUM-TD2", "IBM Ultrium-2",
> "CLASS_LTO2",
> "IBM ULT3580-TD2", "IBM 3580 Ultrium-2",
> "CLASS_LTO2";
>
>
> CLASS_LTO2 = 1,0x3B,0,0x45863d,2,0x40,0x42,1;
>
>
>
> name="st" class="scsi"
>
> target=0 lun=0;
>
>
>
> name="st" class="scsi"
>
> target=1 lun=0;
>
>
>
> name="st" class="scsi"
>
> target=2 lun=0;
>
>
>
> name="st" class="scsi"
>
> target=3 lun=0;
>
>
>
> name="st" class="scsi"
>
> target=4 lun=0;
>
>
>
> name="st" class="scsi"
>
> target=5 lun=0;
>
>
>
> name="st" class="scsi"
>
> target=6 lun=0;
>
>
>
> name="st" class="scsi"
>
> target=7 lun=0;
>
>
>
> name="st" class="scsi"
>
> target=8 lun=0;
>
>
>
>
>
> name="st" class="scsi"
>
> target=9 lun=0;
>
>
>
> name="st" class="scsi"
>
> target=10 lun=0;
>
>
>
> name="st" class="scsi"
>
> target=11 lun=0;
>
>
>
> name="st" class="scsi"
>
> target=12 lun=0;
>
> name="st" parent="fp" target=0;
>
>
>
> My sg.conf is:
>
> # Configuration file for SCSA Generic.
> #
> name="sg" class="scsi" target=0 lun=0;
> name="sg" class="scsi" target=0 lun=1;
> name="sg" class="scsi" target=1 lun=0;
> name="sg" class="scsi" target=1 lun=1;
> name="sg" class="scsi" target=2 lun=0;
> name="sg" class="scsi" target=2 lun=1;
> name="sg" class="scsi" target=3 lun=0;
> name="sg" class="scsi" target=3 lun=1;
> name="sg" class="scsi" target=4 lun=0;
> name="sg" class="scsi" target=4 lun=1;
> name="sg" class="scsi" target=5 lun=0;
> name="sg" class="scsi" target=5 lun=1;
> name="sg" class="scsi" target=6 lun=0;
> name="sg" class="scsi" target=6 lun=1;
> name="sg" class="scsi" target=7 lun=0;
> name="sg" class="scsi" target=7 lun=1;
> name="sg" class="scsi" target=8 lun=0;
> name="sg" class="scsi" target=8 lun=1;
> name="sg" class="scsi" target=9 lun=0;
> name="sg" class="scsi" target=9 lun=1;
> name="sg" class="scsi" target=10 lun=0;
> name="sg" class="scsi" target=10 lun=1;
> name="sg" class="scsi" target=11 lun=0;
> name="sg" class="scsi" target=11 lun=1;
> name="sg" class="scsi" target=12 lun=0;
> name="sg" class="scsi" target=12 lun=1;
>
>
> When i do a "dd", performance seems to be ok (30Mo/s).
> But when i use NBU, i usually obtain 5Mo/s locally or remotely!!
>
>
> Does anyone can point me to the misconfiguration ?
>
>
> Thanks.
>
>
> Fabien
>
> _______________________________________________
> Veritas-bu maillist - Veritas-bu AT mailman.eng.auburn DOT edu
> http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
>
|
|
|