Migrating from Netware to Linux - faster "sync" ?

Question

Hey all,
Planning on doing a TransferID migration from netware 6.5 to linux this weekend and have done some trial data copies.. Main copy is already done, but the "sync" is still taking a large number of hours that I need to try and fit into a smaller window. Any tips on getting sync to go faster? I'm currently using the miggui but wondering if you do the commands manually, leaving things out like displaying progress bar, etc.. if it'll get to it quicker.

Answer 1

Originally Posted by joebrug
Hey all,
Planning on doing a TransferID migration from netware 6.5 to linux this weekend and have done some trial data copies.. Main copy is already done, but the "sync" is still taking a large number of hours that I need to try and fit into a smaller window. Any tips on getting sync to go faster? I'm currently using the miggui but wondering if you do the commands manually, leaving things out like displaying progress bar, etc.. if it'll get to it quicker.
So, we have 6-year old HP DL-385 (no G, that's old they are) that are slower than you know what.
We're migrating to HP DL385 G6 or G7, but we're using VMware ESXi, so the target OES11 server is a Guest VM.
Both servers are on a gigabit switch.
We average approx. 15-20 GB/hour (it's not the AMOUNT of data, it's how many small files that affects things).
We're able to get the sync to fit in a small window (even our large ones, maybe 2-4 hours).
Is that not fast enough (although you may have LOTS more small files that change daily).
Basically we cart the server down, run the sync during the day until it finishes. Obviously it skips things that were in use. Then we kick everyone off the server at 3:00 and start the sync.
Since you're on NetWare to OES, I would NOT recommend rsync. The rsync on NetWare is very touchy/finicky and I don't think you can migrate trustees either.
From OES2 to OES11, you could use rsync, although I'm having mixed results with the trustees at the moment.
One thing we DO have is a "static" set of read-only data on the server, that we do NOT migrate over. We have a central office server that contains the "master" data and the clients run rsync to pull the data. So we don't even back it up either (other than the main office).
I can't remember the EXACT numbers we got when we did NetWare to OES2, but I still think we were averaging somewhere around 12-17GB/hour depending on. The key point was to make sure you were gigabit and didn't have a mis-match because someone in your datacom unit set the **** switch to 100-full or something other than auto-auto.
Oh, and if you have disk quotas, make sure that you either clear them or keep compression enabled. THAT will slow things down because if it tries to copy something, and there's not enough space, it'll retry like X times and then continue on and you find out like 10 hours later it was slow because you didn't have enough directory quota space.