> Hi guys,
>
> starting a new thread about the subject... ;-)
>
> I'm still trying to get a grip on this...
>
> Few questions:
> 1. can raid0/raid1 be done on either scsi or ide or both?
> 2. what's the difference between raid0 and raid1?
> 3. what exactly does it do? Does it mirror data accross
Ricardo Kleemann <[EMAIL PROTECTED]> writes:
> Few questions:
> 1. can raid0/raid1 be done on either scsi or ide or both?
The linux md driver is software, so it doesn't care what the
underlying block device technology is. You just give it block-device
partitions to turn into a RAID device. Thes
Hi guys,
starting a new thread about the subject... ;-)
I'm still trying to get a grip on this...
Few questions:
1. can raid0/raid1 be done on either scsi or ide or both?
2. what's the difference between raid0 and raid1?
3. what exactly does it do? Does it mirror data accross multiple devices,
> Ricardo Kleemann <[EMAIL PROTECTED]> writes:
> > That's wonderful!
> >
> > Now will Linux implement anything greater than RAID0?
It does. Raid1 is in development. It does partial mirroring using about 1/3rd
of the disk space for 'backup' data.
> > Would you say your performance is significan
Ricardo Kleemann <[EMAIL PROTECTED]> writes:
> Now will Linux implement anything greater than RAID0?
> Would you say your performance is significantly increased with striping?
It also currently handles RAID1, and linear; higher levels have been
temporarily disabled because they are still too bug
Ricardo Kleemann <[EMAIL PROTECTED]> writes:
> That's wonderful!
>
> Now will Linux implement anything greater than RAID0?
> Would you say your performance is significantly increased with striping?
>
> How many drives can be striped?
That I don't know. I'm not sure there's a (small) limit. I
That's wonderful!
Now will Linux implement anything greater than RAID0?
Would you say your performance is significantly increased with striping?
How many drives can be striped?
On 15 Aug 1996, Rob Browning wrote:
> Ricardo Kleemann <[EMAIL PROTECTED]> writes:
>
> > Good point about RAID0.
> >
Ricardo Kleemann <[EMAIL PROTECTED]> writes:
> Good point about RAID0.
>
> I know linux's implementation of RAID0 is with the MD program. Do you
> know if that's fully functional, and if so, is there a Debian package for
> it? How is it used?
I'm using it on two machines in the lab. One has t
Good point about RAID0.
I know linux's implementation of RAID0 is with the MD program. Do you
know if that's fully functional, and if so, is there a Debian package for
it? How is it used?
On Wed, 14 Aug 1996, Al Youngwerth wrote:
> Given equal drive parameters, the IO throughput (what matters
Sherwood Botsford <[EMAIL PROTECTED]> writes:
> I agree that you can do this in the OS, but I don't think that it
> *should* be done in the OS.
Disks should serve filesystems, not raw blocks. There have been attempts
at this, but nobody's had a commercial success.
Bruce
--
Clinton
Al Youngwerth <[EMAIL PROTECTED]> writes:
> Sorry, I just had to get in my two bits about this...
No problem.
> The drive's CPU can always make better decisions about reordering =
> requests because it knows the details of the drive's parameters and
> its = current state. A drive's CPU can reord
ECTED]
--
From: Rob Browning[SMTP:[EMAIL PROTECTED]
Sent: Tuesday, August 13, 1996 6:19 PM
To: Debian User List
Subject:Re: SCSI and EIDE
Sherwood Botsford <[EMAIL PROTECTED]> writes:
> I agree that you can do this in the OS, but I don't think that it
>
On Tue, 13 Aug 1996, Sherwood Botsford wrote:
> > This is known as elevator seeking and should be done at the OS level.
> > The order that data is written out is very important for data
> > reliability, and for this reason, I don't think any hard disk change
> > the order of the writes.
>
> The
Sherwood Botsford <[EMAIL PROTECTED]> writes:
> I agree that you can do this in the OS, but I don't think that it
> *should* be done in the OS.
> 0.In general smarts should be at the point they are used. We had a
> VAX that was about as speedy as a 12 MHz 286 with 287 co-processor.
> However,
On Fri, 9 Aug 1996, Wayne Schlitt wrote:
> > On Thu, 8 Aug 1996, Douglas Bates wrote:
> > > the combination of the IDE controller in the Triton chipset with an
> > > EIDE drive is as fast as fast, wide SCSI.
> >
> > SCSI's advantage is that it can handle multiple outstanding requests at
> > the s
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