Mark,
First, let me say I don't do netware. My netware admins indicate that compression happens at the file level but then maybe we're both confused.
We are going to client compression because of a few clients with network restrictions but more because we are replacing most of our primary tape storage with a large local sata. Client cpu is cheaper than a bigger sata. There won't be much (if any) data in the onsite tapepool which gets compressed by the drives.
Stapleton, Mark wrote:
From: ADSM: Dist Stor Manager [mailto:[EMAIL PROTECTED] On Behalf Of Steve Bennett
We are considering use of client side compression on some of our netware tsm 5.2 clients.
Netware is set to compress files that haven't been used in 7 days. I found some doc that said even with "compress yes" the tsm client will not compress netware compressed files before sending. But what about when the file goes from netware uncompressed to compressed?
For instance, I create file A on the netware box today and during the nightly backup it gets processed. Then the file isn't touched for 7 days so netware compresses it. Does the tsm client then backup the file again because it changed?
I'm confused about something. If memory serves, NetWare compression doesn't actually compress individual files; my understanding is that it compresses the entire volume structure. (This was the reason that you couldn't restore compressed NetWare files to an uncompressed volume, and vice versa.)
Or are you running a utility that compresses a single file at a time?
(Why do you want to run client compression in the first place? Constricted network bandwidth?)
-- Mark Stapleton ([EMAIL PROTECTED]) Berbee Information Networks Office 262.521.5627
--
Steve Bennett, (907) 465-5783 State of Alaska, Enterprise Technology Services, Technical Services Section
