>> On Thu, 26 Jan 2006 20:24:40 +0100, Dirk Kastens <[EMAIL PROTECTED]> said:
> That's interesting. I just made some tests on our new server. At first I > defined three big dbvolumes (using raw logical volumes), each on a > separate hdisk (AIX 5.3), and each being mirrored by TSM on another > hdisk. When TSM started up, or when I did an auditdb, only one of the > primary volumes was active at a time, with a read throughput of about > 1000 kB/s (measured with topas). Then I defined striped logical volumes > using three hdisks. During startup or an auditdb all three disks were > active at a time, but the read throughput of each disk was degraded to > 250 kB/s, what makes 750 kB/s for the whole volume. > That means that the throughput was higher with separated volumes. Or did > I make a mistake? Your observations are close to mine, but that startup action is not very similar to any other activity the TSM server will do. - Allen S. Rout
