Another tidbit about raid:
http://www.ghen.be/raid.jpg
- Dan.
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- Psychoceramic Emeritus; South Jersey, USA, Earth.
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Saw this article and recalled some of our threads here about RAID and
Backup and such.
This is a great example of how RAID Backup, of how data on RAID
arrays (even mirrored ones distributed world-wide) can be destroyed,
and then your only recourse is to have a good backup -- mag tape
On Mar 1, 2011, at 1:51 PM, Dan wrote:
Saw this article and recalled some of our threads here about RAID and Backup
and such.
This is a great example of how RAID Backup, of how data on RAID arrays
(even mirrored ones distributed world-wide) can be destroyed, and then your
only
At 2:33 PM -0700 3/1/2011, Bruce Johnson wrote:
I do wonder how many metric tons of tape they buy every year, tho,
and how many of these they're buying
I remember reading something a while ago talked about how many HDs
they consume per day, between failure replacement and expansion. It
On Jul 13, 2010, at 12:42 PM, t...@io.com wrote:
Does the Mac OS X included RAID feature work with USB2 external
drives? Would it be usable (not too slow).
I'm building a home music server out of a G4 Mac Mini running Tiger
and was going to get one external 2 GB drive to sit under
On Jul 13, 2010, at 12:42 PM, t...@io.com wrote:
Does the Mac OS X included RAID feature work with USB2 external
drives? Would it be usable (not too slow).
I'm building a home music server out of a G4 Mac Mini running Tiger
and was going to get one external 2 GB drive to sit under
On Jul 14, 2010, at 12:30 PM, Jeffrey Engle wrote:
I'm really hoping that somebody chimes in on this because I have the
same question.
Software RAID works on any matched pair of HDs, internal, external,
whatever you have. Mirroring is mirroring, so this means if you screw
up the software
: Wed, July 14, 2010 1:30:05 PM
Subject: Re: RAID 1 on USB2 Drives?
On Jul 13, 2010, at 12:42 PM, t...@io.com wrote:
Does the Mac OS X included RAID feature work with USB2 external
drives? Would it be usable (not too slow).
I'm building a home music server out of a G4 Mac Mini running Tiger
On Jul 14, 2010, at 10:40 AM, Kris Tilford wrote:
which has the advantage of going backwards in time to get to a
state that was known good. Theoretically this makes a Time Machine
backup more robust and preferable to a mirror RAID backup.
I like both. RAID and TM backups. Jeff Engle
At 12:42 PM -0700 7/13/2010, t...@io.com wrote:
Does the Mac OS X included RAID feature work with USB2 external
drives? Would it be usable (not too slow).
I'm building a home music server out of a G4 Mac Mini running Tiger
and was going to get one external 2 GB drive to sit under
On Jul 14, 12:40 pm, Kris Tilford ktilfo...@cox.net wrote:
On Jul 14, 2010, at 12:30 PM, Jeffrey Engle wrote:
I'm really hoping that somebody chimes in on this because I have the
same question.
Software RAID works on any matched pair of HDs, internal, external,
whatever you have
On Jul 14, 12:43 pm, Albert Carter slvrmoonti...@yahoo.com wrote:
All,
I got interested so I started googling. Here's something that I found that
may or may not be helpful:
http://66.49.144.193/C2011481421/E20060221212020/index.html
Ah, good link. Thank you. That was just what I
Software RAID works on any matched pair of HDs, internal, external,
whatever you have. Mirroring is mirroring, so this means if you screw
up the software so that it won't boot, the mirror will also be
screwed up.
This should not be an issue, as the only thing on the mirrors
Does the Mac OS X included RAID feature work with USB2 external
drives? Would it be usable (not too slow).
I'm building a home music server out of a G4 Mac Mini running Tiger
and was going to get one external 2 GB drive to sit under it in a
MiniStack case, but then I started thinking about back
All,
I am trying to setup a server on my QuickSilver DP 1.0 computer running OS
X Server 10.4.11. I would like to setup RAID 5. I have 4 160GB ATA/133 Hard
Drives for this purpose. However, I am have a very difficult time trying to
find any PCI RAID Controllers for IDE that support RAID 5
With four drives and Tiger you can do a RAID 0+1. Make two stripes, then mirror
them. It's not as efficient, but works. I use it on a G4 Xserve with four 500Gb
drives.
The other idea that occurs is to get one of the RAID pci cards that were made
for the G5 Xserves. I think they might do what
Do you lose much in performance between RAID 5 and RAID 0+1? I got a
brand new (factory sealed) Hard Drive Controller Card I don't think it
does RAID but I paid like $20 for it off Craigslist. It supports ATA/
133 since the default controller on board for the QuickSilver is only
a ATA/66 maybe
I believe that RAID 5 would be more efficient in it's use of disk space yet
still retain the data protection. Basically my RAID 0+1 uses 2Gb of space to
provide 1Gb usable, and yes, it's setup as one boot volume.
I keep my mp3 and video collection on it.
Frankly, I'm not sure you would notice
Hi All
I have a PM G5 2.7 DUAL and I'm installing a Jive 5 unit and a Seritek card
to allow 5 2TB drives internally.
I need some expert advise on how and what type of Raid system I need to
store and quickly access a large music and movie library? At the moment I have
it stored on 3 machines
On Feb 23, 2010, at 1:40 PM, carmo...@aol.com wrote:
Hi All
I have a PM G5 2.7 DUAL and I'm installing a Jive 5 unit and a
Seritek card to allow 5 2TB drives internally.
I need some expert advise on how and what type of Raid system I
need to store and quickly access a large music
At 1:57 PM -0500 2/23/2010, Len Gerstel wrote:
On Feb 23, 2010, at 1:40 PM, mailto:carmo...@aol.comcarmo...@aol.com wrote:
I have a PM G5 2.7 DUAL and I'm installing a Jive 5 unit and a
Seritek card to allow 5 2TB drives internally.
I need some expert advise on how and what type of Raid
On Feb 23, 2010, at 2:20 PM, Dan wrote:
For Data security at the cost of speed is RAID 5 across 3 disks.
There is a parity bit so that if one drive fails, you still can
recover the data by replacing the failed drive. Slower than RAID 0,
but your data is secure.
until the RAID card
On Feb 23, 2010, at 4:26 PM, Bruce Johnson wrote:
On Feb 23, 2010, at 2:20 PM, Dan wrote:
For Data security at the cost of speed is RAID 5 across 3 disks. There is a
parity bit so that if one drive fails, you still can recover the data by
replacing the failed drive. Slower than RAID
you need to have to raid cards and have it set up so that for a primary and
secondary sort of thing where if one drops out the other card takes over and
you can then replace the failed card. After that you need to resync. It
takes fancy software but we used to do it all the time on Risc 6k boxes
Yo-
Does anyone out there have any experience running hardware
RAID on a G5?
I'm hoping to replace my pile-o'-sata (4 drives to be exact)
with a 2 x 1TB RAID 1 array. EveryMac shows my machine as a
Power Macintosh G5 2.0 DP PCI-X 2, M9455LL/A (PowerMac7,3).
It's running Tiger 10.4.11.
All
At 3:06 PM -0800 12/15/2008, darkey wrote:
what errors make their way onto a RAID unit that a clone backup
won't be vulnerable to?
If something goes wrong on your file system, the errors are reflected
into the RAID volumes immediately. The easiest example is if you
delete the wrong files
At 3:25 PM -0800 12/15/2008, darkey wrote:
after posting, I discovered on their website that the Guardian and OWC
units are safe to store well below 0°. Operation temps are a different
story however.
Be *VERY* careful. Drives are very sensitive to
heat and moisture. They're meant to be run
DVDs too.
I have DVD questions - but will save them for a separate post.
Should I buy RAID1 units?
Personally, I'm not fond of using RAID boxes for backup. As I
mentioned in another post, RAID is Fragile. Too many things can go
wrong with it. IMO, it's better to get normal sturdy drive
Finally - something I understand!!!
amen brother!
What good is a speedometer if it's not kept pegged?
- Dan.
--
- Psychoceramic Emeritus; South Jersey, USA, Earth
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You received this message because you are subscribed Low End Mac's G3-5
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Good.
Might want to burn some DVDs too.
Should I buy RAID1 units?
Personally, I'm not fond of using RAID boxes for backup. As I
mentioned in another post, RAID is Fragile. Too many things can go
wrong with it. IMO, it's better to get normal sturdy drive/boxes
that won't
I actually did something similar in my G5 several months ago. I added
3 additional SATA drives using a Sonnet Jive carrier, used Apple Disk
Utility to partition the drives and establish a RAID 0 striped array
of 1 TB using 3 of the partitions; a fourth was set as a RAID 1
mirrored partition
On Oct 17, 2008, at 6:03 PM, Al Poulin wrote:
In short, the goal of this setup is to stripe the boot and the home
partitions, yet provide a non-striped disk partition to which they
mirror for backup.
I haven't set up a RAID using Disk Utility for a long time, but IIRC,
the RAID setup
in Courier.
Here it is:
QUOTE
[!!! View this message with COURIER font to display images
appropriately!!!]
Dad --
I am going to be doing more research on the matter of using the
Disk Utility's software RAID 0 and 1 in a Mac Pro environment, but
wanted to get your opinions on the matter. I am
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