Re: Backup Wish
- From: "Kevin" <notmyaddress@xxxxxxxxx>
- Date: Sun, 28 Jan 2007 20:13:24 -0500
first change the cable ... I had a bad cable cause problems before.
next test the drive on a pc workstation and compare the results.
finally who is the drive manufacturer, is it formatted ntfs,is there any
other disk i/o intensive applications running while the backup is?
hope these suggestions help
kevin
"Bilbo fake email hal-pc.org>" <wlp<fauxatdot> wrote in message
news:ohdqr25v54g8rauh0fpjjppp2nn06ifq7j@xxxxxxxxxx
Well, I can't swear to anything except manufacturers claims. I'veit
never seen any benchmarks in this area and a server just don't seem
like the right place to run benchmarks. :)
Anyway, you can see why I'd like a how-swappable tray drive that
didn't require a re-boot. It really seems so simple but I've never
ever seen a way to get windows to handle such a drive as removable.
On Sun, 28 Jan 2007 23:25:00 GMT, "somebody" <somebody@xxxxxxxxx>
wrote:
are you sure this usb port, the cable, and the external supports usb 2.0?
becuase that sounds slow to me.
i calculate your backup time at about 1/4 gb per minute and would expect
copyto be more like 1 2/3 gb per minute (takeing only about 1 1/4 hours to
drives119gb of data). i regularly make backup copies of server to external
but do it as a straight copy and not via backup software.
"Bilbo fake email hal-pc.org>" <wlp<fauxatdot> wrote in message
news:rn8qr2d70qmaudq2nqlqpjdapt6dthqhe5@xxxxxxxxxx
I've got a SBS2K3 Premium client that uses NTBackup on USB HDD. It
works just fine but the effective data rates are MUCH lower than I
expected.
One NTBackup of a data-set of 119GB took over 9 hrs to create plus
verify time on USB2.0 ports. Another of 92 GB took a little over half
that time. (The Exchange DataStore is included in these backups.)
The timings aren't consistent and shouldn't be considered stop-watch
timings but rather the sum of the step timings. Even with that said,
they're "all over the place". I haven't yet subjected the logs to
anything like a close analysis but I'm not encouraged by what I've
seen so far.
I don't think even IEEE 1394 would be likely to improve drastically on
this performance but maybe some of you have different experince. If
so, I'd like ot hear about it.
I'm thinking that ideally, we would have hot-swappable HDDs in trays
that could be on the IDE bus and we could do a "Remove Hardware" in
order to swap without re-booting. However, I'm not aware of a way to
re-classify an EIDE-bus HDD as "removable".
Is a solution like this possible today?
Tape backup is financially out of the question.
Thanks,
--
BilBo
--
BilBo
.
- References:
- Backup Wish
- From: Bilbo
- Re: Backup Wish
- From: somebody
- Re: Backup Wish
- From: Bilbo
- Backup Wish
- Prev by Date: Re: Backup Wish
- Next by Date: what is the difference between a backup set, media set and a media family
- Previous by thread: Re: Backup Wish - USB Devices.gif (0/1)
- Next by thread: Re: Backup Wish
- Index(es):
Relevant Pages
|
