View Full Version : veritas backup exec
morning guys, thought i'd start the day with a toughie :P
have a windows 2000 server with an HP surestore dat 40 (HP C5683A) using DDS4 tapes, so, a compressed capacity per tape of 40Gb, backing up with veritas backup exec 9.1 rev 4691
all fine n dandy methinks, till our backup gets to over 20Gb and it decides not to fit it on one tape anymore :mad:
in veritas you cant seem to force hardware compression (which supposedly this drive does) you can only say "use software compression if hardware compression is not available"
i have tried using the HP drivers for the drive and the veritas drivers for the drive, neither of which make it compress the backup
this is really starting to :censored: me off as the server throws a wobbly when it comes to changing a tape during backup if you arent around to do it immediately, it also means that i have a server spending half an operational morning backing up, which means more skipped files and an incomplete backup!
any ideas how to get the damn thing to do compression?
Is hardware compression enabled on the tape drive? If it is, you can just tell BE not to bother compressing at all. That's what I do with one of ours that has a DDS3 drive and it works fine. If hardware compression is enabled on the tape drive itself, and you tell BE not to compress, the drive will do the compression itself. If it's filling up at 20GB it obviously isn't doing hardware compression. Have you got HP TapeTools installed on the server? If not, download it from HP. It'll tell you if it's physically set or not. Somewhere to start.
I take it you have selected the option of "use software compression" if no hardware available?
I've never succeeded in making veritas backup anything at all.
it seems to like to avoid backing up.
shite interface! (rant etc)
Martin T
27-04-2004, 13:33
You typically get no more than 23 compressed GB to a 20/40 GB tape :(
Backup exec should happily wait forever for another tape. If it doesn't then something's wrong.
Like other folks have said the compression is a bit iffy and veritas haS THE WORST BLOODY SOFTWARE ON THE PLANET! ARGHHHHHHHHHHH anyhooo,
best thing to do is enable software compression and by a multi-tape drive, that way you can just create a backup set of a couple of tapes and expand the set as required.
Steve(S14a)
27-04-2004, 14:38
Like other folks have said the compression is a bit iffy and veritas haS THE WORST BLOODY SOFTWARE ON THE PLANET! ARGHHHHHHHHHHH anyhooo,
best thing to do is enable software compression and by a multi-tape drive, that way you can just create a backup set of a couple of tapes and expand the set as required.
Well.... as I support said software... I had better not comment on that one! ;)
Well.... as I support said software... I had better not comment on that one! ;)
fancy providing some free support ? :)
Is hardware compression enabled on the tape drive? If it is, you can just tell BE not to bother compressing at all. That's what I do with one of ours that has a DDS3 drive and it works fine. If hardware compression is enabled on the tape drive itself, and you tell BE not to compress, the drive will do the compression itself. If it's filling up at 20GB it obviously isn't doing hardware compression. Have you got HP TapeTools installed on the server? If not, download it from HP. It'll tell you if it's physically set or not. Somewhere to start.
hp tape tools is probably the problem, as in its not installed as i tend to avoid installing any hp bloat..software with a product and just use the drivers
will download that now and have a looksee
the option for "if not hardware use software" is selected on the veritas options and for the job, ran a backup and it filled the tape at about 19.9 gb, started it this morning and its still going on the second tape!!
Andy Dee
27-04-2004, 15:01
..... veritas haS THE WORST BLOODY SOFTWARE ON THE PLANET! ARGHHHHHHHHHHH anyhooo,
.
Ummm... Arcserve anyone? :indiff: :hurl:
ok, i now have some horrible piece of hp software installed and running :hurl:
where the hell do i go in this horrendously designed pap to find out if hardware compression is enabled or not?
oops think i just upset it by clicking on the menu while it was doing a test
mattpayne
27-04-2004, 20:06
what are you trying to backup?? 40GB of text files? or 40gb of jpgs :D
are you using DDS4 tapes ;)
generally i dont get much more than about 25gb on a DDS4 why not just go out and get a nice AIT drive...
(at home i use 2 DDS3 drives :D )
i wonder if i can get a pm here... but i seem to have *ahem* lost some info from my BE install which i need to be able to back up a couple of network drives... ;)
FullMetalGasket
27-04-2004, 23:20
DAT drives are all horrible, I should know I repair the buggers for a living :indiff:
As has been mentioned above, the DAT drive itself may have compression disabled :nod:
This is controlled by the jumper positions on the drive itself.
I don't think I have the literature for any HP DDS4 DATs to hand at work so I can't tell you which ones it is though :(
A quick search on the internat may help you find which it is. :)
why not just go out and get a nice AIT drive...
Aarrgggg!! no!! nasty sony works of satan :rant: :annoyed: :mad:
The only tape drive I rate is the Seagate DDS3, it's almost infinatly repairable (if you know what goes wrong ;) )
DDS2/3/4 Sony and HP have nasty head destroying cleaning wheels. :whip:
the backup content is allsorts, mostly documents tho, its just over 800 pupils work and all the cack that teachers feel necessary to keep
there are a few large video files in it tho from the media studies groups
running that hp software yesterday on the compression test it wrote to the tape at 2.23:1 compression :confused: will find out when i go in this morning if it actually compressed the data on the backup or not
will have a search of the net for jumper settings for the drive when i get to work as that could be the answer if it is still not playing
something that concerns me now is that the school is currently expanding its IT infrastructure and diversifying its usage to more area's
we now have nearly 300gb of hard drive storage but are nearing the capacity of DDS4 at full compression, and thats just backing up the system files and user files
i was thinking of a couple of NAS units for backup but being a school we are fairly limited budget wise
what would you recommend for backup of that ammount of data??
my last employer used to sell AIT drives, but tbh i still dont trust their reliability
i was thinking of a couple of NAS units for backup but being a school we are fairly limited budget wise
what would you recommend for backup of that ammount of data??
my last employer used to sell AIT drives, but tbh i still dont trust their reliability
NAS device is always a good idea, but not for backup. How about a DLT autoloader?
mattpayne
28-04-2004, 08:36
What about a DLT320 or even a DLT600!!!! :D
my HP/Sony DDS3's - I was using 20-24 DDS3 drives and over a 4 year period ive had 3 hardware problems... not that crappy... ive only migrated to AIT between july - november (17 drives) and so far ive not had any problems with the things, fast, not bad capacity, and they arnt the worlds most expensive drives....
FullMetalGasket
28-04-2004, 21:07
I was refering to there design and repairability. ;)
I have no factory backup what-so-ever and yet can repair probably 95%+ of DDS3 seagates that cross my desk :D
They are excelently designed so that if a component fails it's a piece of cake to remove it and replace it (everything is comparmentalised in the drive)
HP and sony are a different matter. To replace the eject mech on a HP requires you (well, me!) to dismantle the entire bloody thing :mad: it's a grand total of 4 screws on the seagate :annoyed:
Sony are only slightly better. As, with everything jap. Nothing is constructed in a simple or straightforward way :rolleyes:
They are at least slightly more likely to work again once cleaned tho....
DLT's do seem to be fairly tough and reliable :nod:
It's rare for one not to be fixable, although the Super DLT's ( If I'm remembering correctly - it's been a while ) are again the work of satan :furious:
been looking through the drives again today, cant remember which ones moved to the top of the list for proabably purchase now tho lol
there was a 100/200 gb drive but cant remember what it was
was looking through www.insight.com/uk as we have an account with them
Martin T
28-04-2004, 22:38
DLT's do seem to be fairly tough and reliable :nod:
It's rare for one not to be fixable
So they bloody should be for the prices they cost! :eek:
AshT_200
29-04-2004, 10:54
DLT's do seem to be fairly tough and reliable :nod:
It's rare for one not to be fixable, although the Super DLT's ( If I'm remembering correctly - it's been a while ) are again the work of satan :furious:
That they are :rant:
You think you've got a good backup until you go to erstore. Bit like using an Oric Atmos
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