| Author |
Hp Storageworks DAT 160 |
pmoreau
Member
Posts: 16
Location: France
Joined: 18.03.08 |
| Posted on May 17 2008 00:55 |
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Hi all,
I've got a new HP DAT160 at home for backups. Connected in SCSI U2 LVD on my DS15A.
Is it officially supported on VMS 8.3 update 5 ?
The drive is recognized and I had no problems to init a tape, so I suppose it's OK. I don't plan to use compaction (My datas are mainly alreday compressed data). It will be nice to backup a 73 Gb disk on one tape...
For info, the DAT160 tape is thicker than others DATs. I now understand better how they manage to jump from 36/72 Gb to 80/160 Gb from DDS5 to DDS6 :-)
Patrick |
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| Author |
RE: Hp Storageworks DAT 160 |
HobbyistOne
Super Administrator
Posts: 126
Location: Plano, TX
Joined: 20.02.08 |
| Posted on May 17 2008 06:28 |
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Stephen Hoffman wrote:
DLT 20/40GB drives are close to free, or sometimes free. Drives rated at 35/70 and 40/80 aren't priced that much above free. Classic DLT drives and media have been found very reliable.
Gotta agree with Stephen here, the DLT's are much more reliable than the DAT tapes. I have a client that's always having problem with them. I've rarely had any issues with DLT.
Many of the Alpha support IDE disks, and as cheap as they are, disk-to-disk backup is very cheap and fast. I think John Malmberg got a VMS rsync client working that sounds promising. I've used rsync on other systems to do remote backups, and it's pretty neat. |
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| Author |
RE: Hp Storageworks DAT 160 |
pmoreau
Member
Posts: 16
Location: France
Joined: 18.03.08 |
| Posted on May 18 2008 02:40 |
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I maintain my datas on two SCSI disks, and USB external disks on a PC (copy via ftp of zip archives and savesets backup). But I also made sometimes tape backups on DAT's; I have a DAT72 and a DAT160. Tapes are stored at office.
During the vacations, I keep my backups on DAT's and 2"1/2 USB disks (I have some smart 250 Gb ones). Some datas are also copied on DVD RW.
I have a very old DTL drive (a 6 Gb one) sitting somewhere
Patrick |
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| Author |
RE: Hp Storageworks DAT 160 |
pmoreau
Member
Posts: 16
Location: France
Joined: 18.03.08 |
| Posted on May 19 2008 01:18 |
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Twenty use per cartridge is OK for me, I generally use a tape 3 times max.
At work, main backup system is a SDLT320 library (on a Solaris system ... ). VMS backups are made on DAT 40 and DAT72 actually. No reliability problems.
At home, I had a DAT24 drive. No pb. I had a drive failure on a DAT72 (I have a new one now on the slim box).
Patrick |
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| Author |
RE: Hp Storageworks DAT 160 |
pmoreau
Member
Posts: 16
Location: France
Joined: 18.03.08 |
| Posted on July 13 2008 01:40 |
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The DAT160 is at least twice as fast than the DAT72. A 36,5 Gb backup was made
in 1h and 40 min which translates into a bit more than 6 Mb/sec , not bad.
The disk is a 73 Gb SCSI on on U169 bus and tje tape is on an Ultra 80 controller.
Patrick |
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