From: Drew Smith <drew@winterland.mainland.ab.ca>
To: "Stephen C. Tweedie" <sct@redhat.com>, linux-lvm@msede.com
Subject: Re: [linux-lvm] LVM, raw-io, devfs
Date: Fri, 01 Oct 1999 12:39:09 -0600 [thread overview]
Message-ID: <37F4FFCD.6AE2EC3E@mainland.ab.ca> (raw)
In-Reply-To: 14324.58266.920834.895229@dukat.scot.redhat.com
Hi, just checking a fact. :)
IBM's ADSM(*) (well, TSM now, thanks to Tivoli) uses raw logical
volumes on a fairly native level as storage pools, etc. I'm curious,
having never looked into raw IO under Linux, whether it's the same
principles - and, that said, whether or not IBM will be porting the TSM
server to Linux?
Regardless, LVM is a huge jump in the right direction if we want IBM to
release more schtuff for Linux.
Now, I've just got to find a Linux-HSM(**) project to control my
optical jukebox. :) Any ideas whether this exists?
(apologies for the footnotes, they're there for the benefit of people on
the list who don't know these acronyms)
*: ADSM: ADSTAR Distributed Storage Management. A highly-cool
enterprise backup system, scheduling, etc - IBM's version of Veritas.
**: HSM: Heirarchial Storage Management. Basically, take a tape library
or jukebox, make a database of everything on every cartridge, and mount
that database as a filesystem. Copy something out of it, the library
goes and gets the appropriate media and feeds it to the drive. With a
20-cart optical jukebox, this is basically a 20*1.3G filesystem (albiet
a fairly slow one, but with a script to copy the file into a temp space,
perfect as a low-use fileserver. ADSM does this, but the cost is hefty,
to say the least.)
Cheers,
- Drew.
:wq
"Stephen C. Tweedie" wrote:
>
> Hi,
>
> On Thu, 30 Sep 1999 23:48:23 -0300, "Fernando Dammous"
> <ferdam@internetcom.com.br> said:
>
> > Now, I would like to install the devfs and mainly the raw-io.
>
> > Can I install them in a kernel 2.0.36, which is already patched with
> > LVM?
>
> I've never tried the raw IO code on 2.0: let me know how it goes! In
> principle, there is no reason why raw IO on LVM should not work.
>
> --Stephen
next prev parent reply other threads:[~1999-10-01 18:39 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
1999-10-01 2:48 [linux-lvm] LVM, raw-io, devfs Fernando Dammous
1999-10-01 12:40 ` Adrien Farkas
1999-10-01 16:38 ` Stephen C. Tweedie
1999-10-01 18:39 ` Drew Smith [this message]
1999-10-01 19:15 ` Luca Berra
1999-10-02 15:01 ` Stephen C. Tweedie
1999-10-02 15:53 ` Eric Smith
1999-10-03 7:43 ` Harald Milz
1999-10-02 17:08 ` Fernando Dammous
1999-10-03 5:56 ` pamvdam
1999-10-04 10:43 ` Stephen C. Tweedie
1999-10-04 11:03 ` pamvdam
1999-10-03 10:14 ` Adrien Farkas
1999-10-03 17:23 ` Fernando Dammous
1999-10-04 9:28 ` Adrien Farkas
1999-10-04 10:44 ` Stephen C. Tweedie
1999-10-03 13:06 Daniel Whicker
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