Iíve been getting the following error during backup which causes the backup to fail.
6-24-2008 4:26:13 am: COMN-3.23-1092 [nmID=A0025]
Nss-3.00-5001: Pool SCDCA_NW5/VOL1_SP is being deactivated.
An I/O error (20204(zio.c[2165])) at block 4048910(file block-048910)(ZID 1) has compromised pool integrity.

6-24-2008 4:26:13 am: COMN-3.23-33 [nmID=A0023]
Nss-2.70-5004: Volumn SCDCA_NW5/VOL1_SV is being deactivated.
An I/O error (20204(zio.c[2165])) at block 4048910(file block-048910)(ZID 1) has compromised pool integrity.

System specs: NW 6.5 sp4
Backup Exec for Netware 9.2
Dell PowerEdge 1600SC
Iíve tried PoolVerify for VOL1 but did not work.
Iíve been informed that if PoolVerify did not work that a rebuild was next.
The last good backup is over a week old.
Question: 1. How do I do a rebuild of VOL1?
2. IS there a way to get a more current backup?
3. What is the Pool?
Thanks for the direction and information.