Raid unmounts on G5 maybe 10.4.3 update problem

So here is the background :
my g5 runs off a striped raid which has run flawlessly for 2 Months
A week after installing 10.4.3 I had a lock up on the computer
Restart, no joy
Start using OSx disk: raid offline, disks are irrepairable in disk utitlity
Rebuild raid, erase and zero drive, clone my OS back from a copy
System freezes after reboot
Reboot from firewire disk
Rebuild raid
Try to copy across but raid unmounts and goes offline
start from scratch
zap the pram 10 times (to be sure)
set up raid
install 10.4
copy across docs, tunes etc
restart locks up knackered!
So my question is, how do I re set the damage and install a lovely new copy of osx 10.4?
is it 10.4.3 firmware problems even though I have tried to roll back to 10.4?
Any help would be great, I will never upgrade like this again, very bad apple!

Which is why most don't raid, and if they do, it is mirror and they also keep regular backups. Two months and going belly up is rather common. maybe a bad block isn't being mapped out "on the fly" or occurred in the RAID tables.
Have you zeroed the drive or done a 7-way erase? I would start there.
A RAID can help, but so too can having a fast boot drive for OS/Apps and a separate drive for media. A mirror offers stripped reads but writes to both drives - doesn't protect from file corruption, but does protect from a single drive failure.
I would use SoftRAID 3.3 instead, costs $149. Break the RAID and do a 7-way erase. Check the SMART status (10.4.3 now seems to check status on restarts).
Most desktop drives, including SATA, don't get the testing and burn-in needed. You have to do that yourself - or the attention that SCSI gets. I've had few problems in years with SCSI, but regular problems with desktop drives that have half the MTBF.

Similar Messages

G-raid Unmounts Itself

We are using G-raid drives for our projects. When it comes to the end of the day we shut down the systems using normal finder menu.
When we boot up next the g-raid can't be found - should we unmount before closing down?
Also we are using a Sony J30 connected through firewire and when we unplug this, the g-raid unmounts itself and we can't get it to reappear with out rebooting etc..
The J30 is connected through FW400 and the G-raid connected through FW400 - would it be better to connect the deck through the back of the G-raid drive, at the moment they are both connected direct to the PC. Also is there away of unmounting the J30 without just yanking the lead..
Thanks in advance
Cheers
Rob

Well I am no nearer.. it doesn't make sense..
When I turn I unmount the G-raid properly be ejecting it stops the drive. If I then turn the drive off and on it doesn't remount itself and won't do until I reboot.. And it is doing this on two seperate drives... perhaps these are faulty drives but this is weird

I have iphone 4 and have never updated itsince i've bought it. now i would like to update it to iOs 7. maybe can i have some problems in doing this due to the fact that i've never updated it until now?

I have iphone 4 and have never updated itsince i've bought it. now i would like to update it to iOs 7. maybe can i have some problems in doing this due to the fact that i've never updated it until now? thanks in advance for every reply

Did you follow this article to update your phone?
iOS 4: Updating your device to iOS 5 or later
iOS: How to update your iPhone, iPad, or iPod touch
If your device has modified software installed (jailbreak), you might get problems using the phone after updating it.

X-Serve RAID unmounts on large file copy

Hi
We are running an X-Serve RAID in a video production environment. The RAID is striped RAID 5 with 1 hot spare on either side and concatenated with Apple Disk Utility as RAID 0 on our G5, to appear as one logical volume.
I have noticed, lately, that large file copies from the RAID will cause it to unmount and the copy to fail.
In the console, we see:
May 4 00:23:37 Orobourus kernel[0]: FusionMPT: Notification = 5 (External Bus Reset) for SCSI Domain = 1
May 4 00:23:37 Orobourus kernel[0]: FusionMPT: External Bus Reset for SCSI Domain = 1
May 4 00:23:37 Orobourus kernel[0]: FusionMPT: Notification = 7 (Link Status Change) for SCSI Domain = 1
May 4 00:23:37 Orobourus kernel[0]: FusionFC: Link is down for SCSI Domain = 1.
May 4 00:23:37 Orobourus kernel[0]: FusionMPT: Notification = 8 (Loop State Change) for SCSI Domain = 1
May 4 00:23:37 Orobourus kernel[0]: FusionFC: Loop Initialization Packet for SCSI Domain = 1.
May 4 00:23:37 Orobourus kernel[0]: FusionMPT: Notification = 7 (Link Status Change) for SCSI Domain = 1
May 4 00:23:37 Orobourus kernel[0]: FusionFC: Link is active for SCSI Domain = 1.
May 4 00:23:37 Orobourus kernel[0]: FusionMPT: Notification = 6 (Rescan) for SCSI Domain = 1
May 4 00:23:37 Orobourus kernel[0]: AppleRAID::completeRAIDRequest - error 0xe00002ca detected for set "tao.av.complexity.org" (868584D1-E485-4B37-AFCE-E7AFC3AD5BB7), member CBDFD75C-5DC8-4089-A7AE-1EFBE0B1A6EB, set byte offset = 1674060574720.
May 4 00:23:37 Orobourus kernel[0]: disk5: I/O error.
May 4 00:23:37 Orobourus kernel[0]: disk5: device is offline.
May 4 00:23:37 Orobourus kernel[0]: AppleRAID::recover() member CBDFD75C-5DC8-4089-A7AE-1EFBE0B1A6EB from set "tao.av.complexity.org" (868584D1-E485-4B37-AFCE-E7AFC3AD5BB7) has been marked offline.
May 4 00:23:37 Orobourus kernel[0]: AppleRAID::restartSet - restarting set "tao.av.complexity.org" (868584D1-E485-4B37-AFCE-E7AFC3AD5BB7).
May 4 00:23:37 Orobourus kernel[0]: disk5: media is not present.
May 4 00:23:37 Orobourus kernel[0]: disk5: media is not present.
May 4 00:23:37 Orobourus kernel[0]: jnl: dojnlio: strategy err 0x6
May 4 00:23:37 Orobourus kernel[0]: jnl: end_transaction: only wrote 0 of 12288 bytes to the journal!
May 4 00:23:37 Orobourus kernel[0]: disk5: media is not present.
May 4 00:23:37 Orobourus kernel[0]: disk5: media is not present.
May 4 00:23:37 Orobourus kernel[0]: disk5: media is not present.
May 4 00:23:37 Orobourus kernel[0]: jnl: close: journal 0x7b319ec, is invalid. aborting outstanding transactions
Following such an ungainly dismount, the only way to get the RAID back online is to reboot the G5 - attempting to mount the volume via Disk Utility doesn't work.
This looks similar to another 'RAID volume unmounts' thread I found elsewhere in the forum - it appeared to have no solution apart from contacting Apple.
Is this the only recourse?
G5 2.7 6.5Gb + X-RAID 3.5Tb Mac OS X (10.4.9) Decklink Extreme / HD

There should be no need to restart the controllers to get additional reporting -- updating the firmware restarts them.
If blocks are found to be bad during reconditioning, then the data in the blocks should be relocated, and the "bad" blocks mapped out as bad. The Xserve RAID has no idea whatsoever what constitutes a "file," given it doesn't know anything about the OS (you can format the volumes as HFS+, Xsan, ZFS, ext3, ReiserFS, whatever... this is done from the host and the Xserve RAID is completely unaware of this). So if the blocks can be successfully relocated (shouldn't be too hard, given the data can be generated from parity), then you're good to go. If somehow you have bad blocks in multiple locations on multiple spindles that overlap, then that would of course be bad. I'd expect that to be fairly rare though.
One thing I should note is that drives don't last forever. As the RAID ages, the chances of drive failure increase. Typically drive lifespan follows a "bathtub curve," if you imagined looking a a cross-section of a crow's foot tub. Failures will be very high early (due to manufacturing defects -- something testing as "burn in" should catch -- and I believe Apple does this for you), then very low for a while, and then will rise markedly as drives get "old." Where this is would be a subject for debate, but typical data center folks start proactively replacing entire storage systems at some point to avoid the chance of multiple drive failure. The Xserve RAIDs have only been out for 4 years, so I wouldn't anticipate this yet -- but if it were me I'd probably start thinking about doing this after 4 or 5 years. Few experienced IT data center folks would feel comfortable letting spindles run 24x7x365 for 6 years... even if 95% of the time it would be okay.

Xserve Raid Unmounts During Playback

We are using our RAID with Final Cut Pro 5. We are trying to layback a 1080i 10bit 23.98 show with 4 audio channels but during playback the Raid often unmounts itself, causing Final Cut to freak out. Normally at this point we have to restart the G5 in order to get the RAID to mount normally again. Sometimes this happens after 20 minutes of playback, sometimes after 40, and last night it was happening after a mere minute or two of playback. Some RAID info: We have about 2.5 TB available which is split between 14 drives (7 on each controller). We are using RAID 5 and there is currently 500 GB of free space. Any suggestions would be greatly appreciated. If you need more info, let me know what/where to get it and I will post it here. Thanks in advance!
G5 Mac OS X (10.4.6)

Ok, here is the system log from one of the crashes:
Aug 14 15:43:30 apples-power-mac-g5 kernel[0]: AppleRAID::completeRAIDRequest - error 0xe00002ca detected for set "FCP2 RAID" (B52BC88D-65F5-42D7-B208-18F3F91D9ACB), member 82A77A15-2AE5-49EF-AA43-88F8CA0B5734, set byte offset = 2892383387648.
Aug 14 15:43:30 apples-power-mac-g5 kernel[0]: disk3: I/O error.
Aug 14 15:43:30 apples-power-mac-g5 kernel[0]: disk3: device is offline.
Aug 14 15:46:45 localhost kernel[0]: standard timeslicing quantum is 10000 us
Aug 14 15:46:45 localhost mDNSResponder-107.4 (Nov 15 2005 21: 34:38)[41]: starting
Aug 14 15:46:45 localhost kernel[0]: vmpagebootstrap: 1136977 free pages
Aug 14 15:46:45 localhost kernel[0]: migtable_maxdispl = 70
Aug 14 15:46:45 localhost kernel[0]: 110 prelinked modules
Aug 14 15:46:45 localhost kernel[0]: Copyright (c) 1982, 1986, 1989, 1991, 1993
Aug 14 15:46:45 localhost kernel[0]: The Regents of the University of California. All rights reserved.
Aug 14 15:46:45 localhost kernel[0]: using 8192 buffer headers and 4096 cluster IO buffer headers
Aug 14 15:46:45 localhost kernel[0]: DART enabled
Aug 14 15:46:45 localhost kernel[0]: FireWire (OHCI) Apple ID 42 built-in now active, GUID 000d93ff fe6ed1a0; max speed s800.
Aug 14 15:46:45 localhost kernel[0]: Security auditing service present
Aug 14 15:46:45 localhost kernel[0]: BSM auditing present
Aug 14 15:46:45 localhost kernel[0]: disabled
Aug 14 15:46:45 localhost kernel[0]: rooting via boot-uuid from /chosen: 4446EF8E-1DCA-3D82-BCD2-31BD942F1321
Aug 14 15:46:45 localhost kernel[0]: Waiting on <dict ID="0"><key>IOProviderClass</key><string ID="1">IOResources</string><key>IOResourceMatch</key><string ID="2">boot-uuid-media</string></dict>
Aug 14 15:46:45 localhost kernel[0]: Got boot device = IOService:/MacRISC4PE/ht@0,f2000000/AppleMacRiscHT/pci@7/IOPCI2PCIBridge/k2-sat a-root@C/AppleK2SATARoot/k2-sata@0/AppleK2SATA/ATADeviceNub@0/IOATABlockStorageD river/IOATABlockStorageDevice/IOBlockStorageDriver/ST3160023AS Media/IOApplePartitionScheme/Untitled@3
Aug 14 15:46:45 localhost kernel[0]: BSD root: disk1s3, major 14, minor 5
Aug 14 15:46:45 localhost kernel[0]: jnl: replay_journal: from: 10632192 to: 11316224 (joffset 0x4aa000)
Aug 14 15:46:45 localhost kernel[0]: HFS: Removed 2 orphaned unlinked files
Aug 14 15:46:45 localhost kernel[0]: Jettisoning kernel linker.
Aug 14 15:46:45 localhost kernel[0]: Resetting IOCatalogue.
Aug 14 15:46:45 localhost kernel[0]: Matching service count = 0
Aug 14 15:46:45 localhost kernel[0]: Matching service count = 6
Aug 14 15:46:45 localhost kernel[0]: Matching service count = 6
Aug 14 15:46:45 localhost kernel[0]: Matching service count = 6
Aug 14 15:46:45 localhost kernel[0]: Matching service count = 6
Aug 14 15:46:45 localhost kernel[0]: KONADriver::init
Aug 14 15:46:45 localhost kernel[0]: KONADriver::probe() score = 0
Aug 14 15:46:45 localhost kernel[0]: KONADriver::start
Aug 14 15:46:45 localhost kernel[0]: BoardID=10174700
Aug 14 15:46:45 localhost kernel[0]: KONADriver::ProgramXilinxDefault()
Aug 14 15:46:45 localhost kernel[0]: IOPlatformControl::registerDriver Control Driver AppleSlewClock did not supply target-value, using default
Aug 14 15:46:45 localhost kernel[0]: KONADriver::start return: OK
G5 Mac OS X (10.4.7)

External SATA RAID no longer works after 10.5.5 update

After updating to 10.5.5, my external RAID (Sbox) (RAID 10) is no longer recognized – The SATA card is functioning correctly – I can attach a single external SATA drive without problem – all ROM has been updated (working with Sonnet) and we confirmed the proper operation of the card. When the system is attached to the external RAID (with port replicator in enclosure) the card reports an error (both green and amber steady lights) and no activity on the transfer lights. Worked great under 10.5.4 on PowerMac. Any ideas??

It seems as though the problems are multiplying. Other programs are acting funny now - I had to force quit iTunes yesterday and then the Finder froze. Keyboard response was nil, so I couldn't Force quit the Finder, so I had to resort to more drastic measures. It took two reboots to get things running again. I'm going to review some other threads to see if there are any clues there, then probably wipe the hard drive and do a clean install if nothing else seems to address the issue.

Some form of virus maybe, that came with update

I am not the most technology savvy person as it is, however, i received a message regarding an available update for my BB Tour. I accepted it, and everything seemed to be fine, until about an hour ago. After every SMS, MMS, and phone call, a seemingly jazz styled singer sings "i ain't gonna___unknown__somebody now" and repeats it twice. I searched my phone thinking maybe a friend was playing a joke, but there is no file containing this song in anything. Someone please help if possible.
thanks,
bbuser2409
Solved!
Go to Solution.

Remove the battery to reboot the device.
1. Please thank those who help you by clicking the "Like" button at the bottom of the post that helped you.
2. If your issue has been solved, please resolve it by marking the post "Solution?" which solved it for you!

Long bios load time with gtx970 - maybe need gpu bios update?

I just installed my gtx 970 and it all runs fine. However I get a very long bios load time on boot up. Normally it only takes a second or two with a single beep. With the 970 though I get the single beep and the bios load screen, but it sits at that screen for a long time, then another beep, waiting, eventually another beep, and after some more waiting windows will start to load.
My problem is that now I can also no longer get in to the bios. I have tried even plugging in a ps/2 keyboard to see if maybe that could get me in. The farthest I get after hitting delete to enter is I just end up at a black screen. My mobo has no onboard gpu output, so its not like its trying to go to a monitor I cant see.
So would any gpu bios updates fix this? I am currently at the latest bios for my board which updated it to a uefi bios.
cpu: i7-2600k (yes Im aware I will only have pcie2)
mobo: gigabyte z68 d3-b3
ram: 16gb
gpu: MSI gtx 970 Gaming (previous was an evga gtx 660)
SN:602-V316-050B1412042805

Quote from: lucianobessa on 02-January-15, 10:48:08
Under bios features, is there a option called boot mode select?
Try to switch to "legacy only", save and reboot.
Are you using HDMI connector? Try to use DVI.
Sorry for my english!
I dont remember seeing any boot mode select. As far as connections I am using all DVI for my monitors. I have also tried only having a single one connected in case there were issues with multiple monitors
Quote from: Svet on 02-January-15, 10:56:46
with those old boards, you need ME8 to works with modern cards
ask gigabyte support about it
Thanks Ill try emailing them. Is ME8 some other bios? Just never heard of it before
-edit
After reading up it looks like it was just a revision to allow ivy bridge devices, which happened a long long time ago on a bios update:
Support Intel 3rd generation 22nm E1 stepping CPU (Ivy bridge)
Improve power on issue
Update ME / CPU code
Unless theres something else Im missing about ME8

I have used ffox 4 years but it crashed maybe after a fox update or an adobe update I cant dload it always stops at 1% to go Vista

I can't download any attachments now with explorer Ffox stopped working & I had to work hard to delete it. I used Ffox for years and it crashed after either a Ffox or Abobe update When I try to download Ffox 7 it stops at 1% to go and doesn't work. Also I used to see individual files in Utorrent downloads so I could choose what I wanted, now there is a blank & I have to download the lot for maybe 1 file. Can anyone help please?
Jules.

Why start a new and very similar thread to your other one which you have not responded to (have you read the replies?)
I suggest that no response is made to this duplicate thread.

Firmware update problem with raid mirrored drives and solution

Note this - the firmware update will not install from a software mirrored boot drive. It will install just fine from a non-mirrored clone. So, make a clone, set it as your boot drive from system preferences, and all is good.

Well this is a pain, this is what I figured I would have to do but c'mon apple, I am sure people are not going want to hassle with making a clone, finding or buying a single drive to install the OS to, boot that drive, install the firmware patch, reboot, make sure it took, tear down the system, swap the soft-RAID set of drives back in etc. etc. etc.
This is another reason why Apple need to take note from the PC world, I know they like to "Think Different" when it comes to things like this but they really need to give access to and write a driver for the supported on-chip hardware RAID controller located in the Motherboards Southbridge chip of THIS motherboard, just like all other woodcrest Xeon based systems running the same intel motherboard chipset!
I am sure this post will get me a long list of flames from the Apple fanboys explaining how what Apple is doing is really better, or telling me that if I want hardware RAID 5 to just go and buy $6000 xServe RAID setup.
Well I better quit typing so I can tear apart my system, find a hard drive to install OSX on.....See you guys in a few hours

Trouble loading pages in Safari 1.3.2 (maybe due to a javascript problem?)

Hi!
I'm wondering if anyone could offer advice on how to fix a problem I'm having with my web browsers. I can't seem to load certain pages (e.g., Amazon.com). The browser loads most of the page, but then gets stuck on the last item and never finishes loading (so the whole page stays blank). I'm having the same problem in Safari, Firefox, and Internet Explorer. I think it may be a javascript problem. When I turn the javascript option off in Safari, I have no trouble loading the pages. Also, when I look at the safari activity monitor while opening those trouble pages, the .js files are the ones that don't load.
Things I've tried include emptying the browser cache, resetting cookies, emptying my java cache in the utilities section, and making sure all of my software is up to date.
Any help or suggestions you could give me would be fantastic. Thank you so much!

Hello there,
Do you have a style sheet [ CSS ] you are using in Safari-> Advanced Tab? if yes set it to none, and see if that helps.
Whilst in Advanced tab check your network settings & make sure you've no proxies checked on.
In " View " Check your Text encoding try using Unicode.
Have you tried a restart,if the puter that can help.
Have you run permission repair and see if DU reports any errors.
In Utilities Disk Utility, First Aid tab. do not bother with verify perm.
do run repair permissions. Stay on the left side of the Disk Utility
< [ not repair disk ] if you know already, sorry.
Good Luck, I hope something helps..
Eme: )

Why can't touch and drag icons on flash websites? Maybe a possible future update?

Hello, I use Firefox 23 with Adobe Flash Player 11.1 plug in. One of my favorite flash sites to visit is the pokemon and the pokemon global link website. I can't touch and drag in this browser utilizing flash. The icons respond to me selecting them, but I am unable to drag them. It makes it very difficult to utilize these sites. I have no problem doing this in my dolphin browser. I'm a HUGE Firefox fan and I would like to get rid of dolphin browser completely. Is there a way to touch and drag on flash sites? Could this be applied to a future update possibly?
9/16/2013 Update: It Has Been A Week Now With No Response -Please Advise
***I Don't Get It***If no one can help me here then where can I forward this? Is there an actual tech support here or is this just another social forum? I would like to contact technical support. -Please Advise

Hi barb, well for one thing the vs of Flash Player is the old one. You need to update to the latest version which is 10.0.42.34.
The first link should be http://www.gourdlamps.com/presentations; that one and the other one work fine for me.
It could be that those two websites have updated to 10.0.42.34.
Here is the Adobe Uninstaller that you download and put on your Desktop http://kb2.adobe.com/cps/141/tn_14157.html
This is the Installer link for IE and you will SAVE this to your Desktop
http://fpdownload.macromedia.com/get/flashplayer/current/install_flash_player_ax.exe
Then go to this thread and follow my instructions, except use the links I gave you. The procedures are the same.
Before you do any of this, take a look at the Uninstall article and the last two NOTES. They are very important when uninstalling IE. The last NOTE: Use the "See Details" If you see the old version of 10.0.32.18 still there, follow those instructions in that NOTE.
Thread: http://forums.adobe.com/thread/561702?tstart=0 (If you have a problem with the link, look for the thread
"NPSWF32.dll error...." on the first page of the Flash forum.)
Also one other difference is after Adobe confirms you have the 10.0.42.34 installed, you would go to the manage add ons
and look for Shockwave Flash Object.....ActiveX Control......Flash10d.ocx ...... make sure that is listed and it is Enabled.
Java: If you have any old Java entries in your Add/Remove, Remove them via the Add/Remove process, wait until the entry no longer appears and when you are finished, Reboot. You can do this and install the Java before Uninstalling & Installing. Link to Java JRE 6 update 18 : http://java.sun.com/javase/downloads/index.jsp
If you have any questions, just post back.
Thanks,
eidnolb

I was just wondering if Siri will ever come out to the iPod touch maybe on the next update but I love apple like so much it is way better than any other company! But I was just wondering because Siri is so cool and I want to try her out

I was just wondering because
I have always loved apple and then
I got my I pod touch and then
I found out about Siri I have
Always wanted to play with her
Ever sence I found out! So i
Just wanted to ask you
guys from apple

Apple itself does not respond to questions on the Apple Support Communities forums. Responses come from other Mac users like yourself. We don't know what Apple plans on doing but I am not sure the iPod Touch has the computing power to do Siri.

Iphone 4 when using ipod playing music phone switches to docking station. I think this maybe a software update problem for it did not do this since the last update. please help !!!

Hello ?????

hi i had the same problem today when i updated my itunes to latest version. however, i have just found my songs in the 'itunes media' folder. this was accessed through 'my music' then keep clicking through until you find itunes media and all my library songs were in there and i then just added these files to my library and all were restored however, i have lost all my playlists but at least my 700 songs are back. very dissapointed with apple that they have let this happen with their latest update, the previous version was miles better than this one . hope you find them. stevo

Dead 2008 Mac Pro with Soft Raid - Diagnostic Ideas?

I'm starting to run out of ideas how to diagnose and fix my 2008 (March) Mac Pro: Dual quad-core Xeon, 2.8GHz with a 2TB four-HD soft RAID.
I think it died of a bad or partial or otherwise failed update of Mavericks. Since Mountain Lion, I think it was, soft RAIDs no longer support Recovery Disk partitions, but I have a Recovery Disk on a USB thumb drive, created on my MacBook Pro running Mavericks. The MacBook Pro can boot from it, so I'm confident that it was created successfully, but no luck booting from it on the Mac Pro.
Below is what I've tried along with the results I got, pretty much in chronological order. Any of you have any other ideas?
Experiment
Result
Normal boot from soft RAID
There's frame-buffer-memory garbage (largely quasi-random noise) at the top of the screen. The grey Apple logo came up offset to the right of the screen, with the spinning thingie below it. That spinning thingie (I forget what it's officially called) spins for about the right amount of time where it would start drawing the desktop, but instead it freezes up, and then I start seeing flashing orange stripes on the screen. The disk keeps cranking for a while.
Powering up in target-disk mode, over Firewire
Works normally, and I in fact successfully backed up the RAID that way to a 2TB USB drive, using the MacBook Pro.
Zapped the PRAM, then normal boot from RAID
The only change was that there is less frame-buffer-memory garbage at the top of the screen, and the Apple logo and spinning thingie is now centered again. Other than that, the failure to boot happens identically.
Boot with option key down and Recover Disk USB thumb drive in the front USB (on the Mac Pro itself; no USB hubs intervening).
It boots up showing icons for each of the four disks of the RAID, but does not show the recovery disk. (Doing the same on the MacBook Pro does show the recovery disk, and I am able to boot from it on the MacBook Pro.)
Booting with C, since I gather that that could also tell it to boot from a USB drive.
It did not boot from the USB drive.
Booting with D, to try to get it to run hardware tests.
No effect; still fails to boot in the usual way.
While connected to the MacBook Pro in Target-disk mode, running Disk Utility looking for disk problems.
No problems found. I have a Mavericks version of DiskWarrior on order. Should be here in a day or two.
I haven't tried any network boots, since I don't know of any network drives to boot from, and I'm not sure if it would do any good anyway.
I really doubt if this would work, but one ... conceptual ... way to replace the OS on the RAID might be to connect the RAID, via target-disk mode, and buy (again) Mavericks (or Yosemite?) from the App Store, and then tell it to install it on the RAID rather than the MacBook Pro itself. The problem with that, I imagine, would be that after loading it onto the RAID, it would presumably perform an installation appropriate to the MacBook Pro rather than appropriate to the Mac Pro. So, I'm not desperate enough to try that yet...

Just how did you create the recovery disk on the thumb drive? Maybe it is unique to the laptop.
"but I have a Recovery Disk on a USB thumb drive, created on my MacBook Pro running Mavericks."
If y can download the Mavericks installer on your laptop y can make a Mavericks bootable installer with
http://liondiskmaker.com/

Raid unmounts on G5 maybe 10.4.3 update problem

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