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IBM Deskstar GXP: 5MB/s ?!?
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Senior User
Join Date: Oct 2000
Location: Paris, France
Status:
Offline
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I just bought one of those, on assumption of it being one of the fastest around. Installed it on my 400MHz G4 with stock 10GO WD hard drive, and the transfer rates I get copying large folders from the old drive to this one never go higher than 5MB/s. Is my old drive really that slow or is it some problem/setting with the new one?
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Soyons realistes, demandons l'impossible.
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Soyons Réalistes, Demandons l'impossible
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Mac Elite
Join Date: Jun 2000
Status:
Offline
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how fast does the new drive copy big files from itself to itself? if it is fast, then it's probably a problem with the old drive.
can you test how fast your old drive reads? if you have Toast, try dropping a large file onto Toast and then selecting "Check Speed."
i have a G4 with the same (or very similar, at least) 10GB Western Digital drive. For a single large file, Toast usually can read 8-9 MB/sec. for copying from this drive to itself (in the finder), it gets about 4MB/sec for me.
if your disk performance is slow, you probably need to optimize your disk (or even just defragmenting helps) and rebuild the directory. both DiskWarrior and Norton Utilities do this well. after neglecting to optimize a disk for many months, I've seen as much as a 30% performance increase upon optimization. even for large files this is the case, because if a large file is heavily fragmented, then copying it is like copying many small files, very slow.
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Senior User
Join Date: Oct 2000
Location: Paris, France
Status:
Offline
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I was wondering how accurate a bench mark toast would be, and apparently its pretty much fine. It gives me around 8MBps for the old drive and over 15 for the new one. It's supposed to get over 28 (over at Xlr8yourmac), I'll be formatting the old one when OSX arrives anyway, so I'll see after that. Copying a 130 Meg file onto itseld takes approx 25s, so that's again quite close to that 5MB/s figure. That's under the PB though, I'm still waiting for final...
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Soyons realistes, demandons l'impossible.
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Soyons Réalistes, Demandons l'impossible
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Senior User
Join Date: Feb 2001
Location: Cambridge, England
Status:
Offline
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Some of these newer hard disks have write verification switched on at the factory, and it stays on until the drive has had 10 power on/off cycles, to ensure that consumers don't get a lemon. Give your drive a few days (assuming you shut down and restart the computer fairly regularly) and it might well speed up.
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