XServe Raid won't mount after drive replacement

We had a drive go bad on an XServe Raid. We replaced the drive. It went through the rebuilding process. Now we can't mount the raid. The verify in the disk utility is successful but it still won't mount. What are we missing?

I have managed to fix the problem (at least it's still going at the moment...). We were just about to return the Fiber Card to Apple, but just before I removed the card from the G5 I had one last look at the settings on the RAID. Previously I had noticed that LUN Masking was on. I didn't take much notice of this before, as I read in an Apple manual somewhere that LUN Masking is always on while the Xserve is initializing the disks. As a last resort I thought to try and force LUN Masking to be disabled. I changed the array to JBOD, so the disks wouldn't be initialized, and entered the advanced settings. I then went to the LUN Masking section and turned off masking for both controllers. I then shut down the Xserve and unplugged it for 10 minutes.
I then turned on the Xserve and the G5 and to my utter delight, the G5 said "Unrecognized disk inserted"! The G5 was finally seeing the RAID.
I then formatted the RAID and everything has been fine since (4-5 hours).
I have no idea how LUN Masking turned on, the masking list had no devices in it, so the RAID was basically disallowing anyone access through fiber. Upon turning masking off, the RAID reappeared on the G5. Apple support said nothing about LUN Masking when I on the phone to them. I guess they though resetting the RAID controllers would reset the LUN Masking, but it doesn't seem to. I repeat: Resetting the RAID controllers does not reset LUN Masking.
All along this was the problem, but no-one at Apple or the reseller we purchased the Xserve RAID from thought of it!
I hope this helps someone out there.
Elijah
PowerMac G5, PowerBook G4 Mac OS X (10.4.6) G5: 1.8Ghz 1Gb RAM Geforce 6800. PowerBook: 100Gb HD, 1.25Gb RAM

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Xserve RAID won't mount on G5.

Hi,
We purchased an an Xserve RAID yesterday that has 4 x 500Gb ADM's in it. I was checking out the different options in RAID admin and the Xserve was working perfectly, the unit was mounted on the desktop. I changed the RAID type from something I was experimenting with back to RAID 5. This was fine, after erasing the RAID, it showed on the desktop. I copied around 250Gb of data to the Xserve, and it was going fine, until the last Gb or so failed because the name of a file was too long. I thought this was odd, as both the source and destination devices were jHFS+. The RAID then stopped responding, and this required me to forcibly restart the G5. Upon doing this, the RAID didn't show on the desktop. I went into Disk Utility, and there was nothing.
I restarted both the G5 and Xserve multiple times, reseated the fiber card, fiber connections, drives, control modules and reset the control modules. This still didn't work. I deleted the RAID array and created another, the RAID was still invisible in Disk Utility. System Profiler reports that a fiber connection is established. I can't remember the LUNs it shows though.
Does anyone have any ideas?
Any help is much appreciated.
Thanks!
Elijah

I have managed to fix the problem (at least it's still going at the moment...). We were just about to return the Fiber Card to Apple, but just before I removed the card from the G5 I had one last look at the settings on the RAID. Previously I had noticed that LUN Masking was on. I didn't take much notice of this before, as I read in an Apple manual somewhere that LUN Masking is always on while the Xserve is initializing the disks. As a last resort I thought to try and force LUN Masking to be disabled. I changed the array to JBOD, so the disks wouldn't be initialized, and entered the advanced settings. I then went to the LUN Masking section and turned off masking for both controllers. I then shut down the Xserve and unplugged it for 10 minutes.
I then turned on the Xserve and the G5 and to my utter delight, the G5 said "Unrecognized disk inserted"! The G5 was finally seeing the RAID.
I then formatted the RAID and everything has been fine since (4-5 hours).
I have no idea how LUN Masking turned on, the masking list had no devices in it, so the RAID was basically disallowing anyone access through fiber. Upon turning masking off, the RAID reappeared on the G5. Apple support said nothing about LUN Masking when I on the phone to them. I guess they though resetting the RAID controllers would reset the LUN Masking, but it doesn't seem to. I repeat: Resetting the RAID controllers does not reset LUN Masking.
All along this was the problem, but no-one at Apple or the reseller we purchased the Xserve RAID from thought of it!
I hope this helps someone out there.
Elijah
PowerMac G5, PowerBook G4 Mac OS X (10.4.6) G5: 1.8Ghz 1Gb RAM Geforce 6800. PowerBook: 100Gb HD, 1.25Gb RAM

RAID won't mount until 20 minutes have passed

Every now and then I'll have a crash on my G5.
If I have to force quit through menus or manually through power my RAID won't mount after the restart.
The RAID is a striped 5 hard drive set at RAID 0. After some turning on and off of the RAID and plugging it back in, the drives appear on Disk Utility, but not the RAID image. After the drives appear the RAID waits 20 minutes until it mounts the proper way.
Any help on what is causing this?
Thanks!
Using Mac G5
Leopard 10.5.8
4 x 2.5 Power PC
4GB RAM

Chulo01 wrote:
eSATA connection to a G5.
I suggest you check any drivers there may be for the eSATA card and also the firmware for the card.
RAID is a CoolGear 5 Bay PLCD
Created through Disk Utility on MAC OSX 10.5.8
Not having created a RAID using Disk Utility I am not sure if running it to 'Verify Disk' will adequately check your RAID but hopefully someone else will post re that.
It's been a few years, 5 maybe, doubt the warranty is still on.
90 days, they're having a laugh. That is the worst warranty I have ever seen for a RAID. I have seen cheap printers with a better warranty than that. I was expecting 3 years at least and maybe even 5

Ipod classic won't mount after updating to itunes 11.0.2

ipod classic won't mount after updating to itunes 11.0.2.
I updated to itunes 11.0.2 today, after delaying it for a looong time (I have it @ work and don't like the new layout).
Since then, none of my ipods will mount/show up/update. I've tried all USB ports, 3 ipods, 3 cords. Wondering if you know of any issues. I've restarted the mac about 15-20 times today since as soon as I hook up an ipod, itunes immediately spins the beach ball and won't let me click out of it.
I've restarted the ipods 10+ times each.
All of the ipods DO show up on my desktop though. Just not in itunes anywhere with 11.0.2.
One more thing: It's not the cables or the ipods: they both mount fine when connected to my laptop (running old *** 10.4.11 and itunes 9.)
Machine is a Mac Pro running 10.6.8.

Finding this Post took some time but I thought it was me talking when I read it. I was having the exact same issue. I have a G3 I've been upgrading like mad, including a Sonnet G4-500 CPU a Maxtor 60gb & 80gb HDs 1gb of RAM a new LaCie Firewire800 PCI card Graphics card etc. the latest was installing Panther 10.3.9 on the new 80gb HD and also swapping out the old CD-ROM and replacing with the (Apple standard) Pioneer DVD-RW DVR-110D combo drive in it's place. got everything up and booted and poof! no burning. Toast worked read/write no problem. iTunes could read and import no problem, but wouldn't burn a CD.
Downloaded "PatchBurn 3.1.3" installed, re-booted and all is OK in burner land again :>)
I wanted to just post my additional thanks to the lead to Patchburner, and I'm going to donate to the cause. It's worth a $20 donation just for my joy of not throwing this computer out the window!!

External RAID Won't Mount

Hi all -
I have a SimpleTech Quad-interface RAID which I'm running as RAID 1 for mirroring, which is supposed to be protecting archived video projects. I've been in the middle of a weeks-long NIGHTMARE trying to get an eSata Expresscard to work on this MBP, which is another story.
After numerous crashes, forced quits, etc testing various eSata cards, my RAID won't mount. It shows up the same whether I'm using FW400, FW800, or USB. When it powers up the Mac says it can't recognize the drive (Initialize, Ignore, or Eject), and Disk Utilities sees the box but only identifies the volume as disk1s2.
I have opened the box and attached the drives separately, and get the same response on both disks individually. Disk Utility can't verify or repair, and DiskWarrior can't see them at all.
I know I can reformat the RAID, but I really want to save these files. Is there any way I can do that?
Thanks a lot in advance.
Dave

You may have to reformat the RAID.
Do keep in mind that even RAIDs need to be backed up.

DVDs won't mount after Security Update 2006-004

DVDs won't mount after installing Security Update 2006-004 via the Software Updater in OS 10.3.9. CDs work OK.
I've repaired permissions, reset PRAM, tried booting in OS 9.2.2 but can't get the DVDs to mount/play or be seen by disk utility.
Please help.
iMac 400mhz
Original Matshita DVD-ROM SR-8184
iMac Firmware 4.1.9
Thanks

How recently before installing the Security Update did you use the DVD drive (for DVDs)? If it was not immediately before the update, the two are probably not related. Also, if you restarted in Mac OS 9 and the DVD drive still does not work, it would seem to indicate the problem is hardware, not software.
You can try opening up the iMac and checking the connections to the DVD drive. Also, it is possible that your PRAM battery is dying (unless you have replaced it recently); that can cause unexpected problems.

Time Capsule won't mount after upgrade to iTunes 9

See my full post in the Time Capsule support section ("Help! Time Capsule won't mount after installing iTunes 9"). My music library is on my Time Capsule, but after installing iTunes 9, it won't mount on my iMac G5. I can use the internet, but the disk won't mount. My Powerbook hasn't been updated yet and the Time Capsule mounts fine.

To make it easier, here's the post:
"My music library is on my 500 Gb Time Capsule. I just installed iTunes 9 on my iMac. It updated my library and synced my iPhone. Now, the TC won't mount. I still have internet connectivity, but I can't access my media or print to my printer connected to the TC. I can use the computer and everything, but if I hover my mouse over the TC disks menu bar icon, I get the spinning beach ball there. If I try to connect using my Network icon in the sidebar, it allows me to log in and get to the screen to select the volume I want to mount, then stops responding. In the Activity Monitor, AFP Client & AirPort Base Station Agent are not responding. I also have a Powerbook G4 w/Leopard (10.5.8) which hasn't been updated to iTunes 9 yet. The Time Capsule mounted fine on it."

External drive and ipod won't mount after latest security update

I just downloaded the latest security update on my powerbook, and now my lacee external hard-drive won't mount. I ran disc permissions and still nothing. My ipod charges from the firewire port but doesn't mount either. The hard-drive mounts fine on my dome imac which appears to have the latest updates as well. Could it be a problem with the firewire port itself or something to do with the security update? Thanks for the help.

Your PowerBook is hurting my friend. Check "About this Mac" and see if the memory reported is the actual memory you have installed on the machine. I had a PB that had 1GB installed but the machine only read 256. Ended up needing a logic board replacement. Check http://docs.info.apple.com/article.html?artnum=303173 to see if it applies to you.
Unplug all devices from the PB, leaving only power connected.
If it everything seems cool, then you'll want to start up in "single user mode". Restart the PB and hold down the  + s (apple and s) keys until you get a black display with white characters. Once you get the command prompt signified by a # character. At that point type in the following at the prompt
fsck -yf
then hit your return key
As the system check your HD, notice any errors that are displayed. After it is done it will inform you of any modifications, or if it thinks everything is cool.
then again, type in
fsck -yf
then hit your return key
You'll want to have run the fsck -yf utility a total of 3 times. Hopefully at the end everything will be good (No errors) "* appears to be OK".
In any case, type in
reboot -n
then hit your return key
Your PB will reboot. After the OS has loaded, plug in your FW devices and see if they mount. Either way post back with results.
d

Hard Drive Won't Mount After Repair by Second Computer

I have an G4 Cube with OS 10.2 on the internal hard drive (which is full) and OS 10.4 on an external La CIe hard drive (that I use as my main OS). The external hard drive accumulated serious damage that couldn't be repaired by Disk Utility on the internal drive. My copy of DiskWarrior X would not run under OS 10.2 (10.4 was required) and it wouldn't boot from the CD either So I connected the external hard drive to my second computer, an iMAC running OS 10.5. (Unfortunately, I disconnected the external hard drive when the computer was off instead of ejecting the drive by dragging it to the Wastebasket.) The external drive mounted and DiskWarrior easily constructed a new directory, defragmented the files, and eliminated all of the damage on the external hard drive visible to Disk Utility. However, when I reconnected the repaired external hard drive to the G4 Cube, the drive wouldn't mount. Privileges were repaired on both computers with the external drive connected without helping. Being repaired while connected to a higher OS or perhaps simply being connected to a higher OS seems to have left the LaCie external hard drive in a state which couldn't be mounted by an earlier OS.
Following this hypothesis, it booted the G4 Cube from the OS 10.4 Installation CD while the LaCie external hard drive was connected. When I cancelled installation of OS 10.4, I was asked to choose a start-up disk AND OS 10.4 WAS NOW MAGICALLY AVAILABLE ON THE EXTERNAL DRIVE. Simply starting up from a more advanced OS allowed the hard drive to mount.
Shockingly, when I restarted from OS 10.2, the external hard drive was still mounted. Whatever was preventing the drive from mounting was a TRANSIENT STATE, not backwards incompatability.
POSSIBLE LESSON: If a hard drive won't mount on computer A after being connected to computer B, consider booting computer A using the OS on the installation disk from computer B.

If you need to repair a hard drive with OS X installed on it, you must use that same version of OS X to perform the repair. Using another--in this case, newer--OS can cause quite a bit of trouble, as the directories/permissions may be dealt with differently between the OS's.
Seems you've learned this lesson--and luckily you didn't lose anything!
~Lyssa

External drives won't mount after running repair permissions

None of my external drives will mount after running disk permissions. Drives work fine on my mbpro.
None of the external drives show up in disk utilities...
I've try shutting down and unplugging computer. even mini zip drives won't mount.
I'm running 10.4.11
PPC G5 2.3Ghz
Thanks for any help..

Repairing Permission only deals with installer receipts and system components. Not with mounting or accessing hard drives.
Have your run Apple DU First Aid? Disk Warrior? Only use latest version for your OS.
Are you trying to clone your system to external and then repairing permissions? trying to boot from them?
If cloning, make sure the "Ignore Ownership" flag is unchecked before cloning (but do repair permissions on external drives you intend to boot from, such as a Firewire drive).
What type of cases and interface are these?

External Firewire hard drive won't mount after 10.4.10 update

I see many posts about USB drives not mounting after 10.4.10 update. Just lending my voice to that issue (my USB drive won't work either) as well as the 10.4.10 update breaking Firewire drives.
Hope a fix is coming. No backups are scaaaary.

How to fix the problem of a missing external Hard Drive (Firewire) after it vanishes from you desktop after installing 10.4.10 update.
I have a iMac PPC (Non intel). Aparently my system upated installed the wrong version of 10.4.10 and thus my external firewire hard drives a 320 GB Westerndigital My Book, and Acomdata 80 GB, and aWestern Digital 160 GB media center all vanished from the desktop.
The instructions below should be credited to several different people. I found various version of these steps in the Discussion. I combines a few of them into this one 10 step fix and it worked for me. I hope it works for you.
1) Shut down you computer
2) Unplug all peripherals (i.e USB and Firewire, I left computer power plug in as well as ethernet and Keyboard+ Mouse) and leave along for 30 Minutes
3) Restart holding down the Command (Apple) + Option + P + R keys for three startup bongs, then release the keys and your computer will start up as usual.
4) Verify and repair disk Permission using Disk Utility. (Several things were repaired here)
5) Instal 10.4.10 Combo PPC
6) Restart Again
7) Again repair Disk permissions (None of mine needed to be repaired fyi this time)
8) Unplug Power cable and Firewire cable from External Hard Drive (leave along for 1 minute)
9) Reconnect power to Firewire External Drive first then the Firewire cable to the drive second, then the firewire cable from the Drive to the computer last.
10) Turn on your Firewire Drive... you will head it spin up and eventually show up on your desktop just like it did before the 10.4.10 update.

External drive won't mount after plugging in iPhone - MacBook 13'' (2,1)

Hi Support Crew...
I have a 13" MacBook(2,1) running OS X 10.6.2. This is a 2 GHz Intel Core 2 Duo machine w/ 4 GB RAM & 320 GB hard drive.
Today, I had the Iomega drive plugged in via USB, along with my soundcard (MOTU 828mk2) plugged in via FW. This is a very normal setup for me which has been bug free since I bought this computer over 2 years ago. When I plugged in my iPhone 3G via USB I got an error message which comes up when you incorrectly remove a device. This was strange because I didn't unplug anything, I only plugged in the iPhone. The iPhone was playing music when I plugged it in and I had to unplug and plug is back in to get iTunes to recognize it.
Ever since this happened, my Iomega external drive won't mount. I am able to access it via Disk Utility (and ran the Verify Disk/Repair Disk - everything is "ok"), however I can't access the data on the drive. I really really need the data but of course can't access it to backup.
Disk Utility log:
500.11 GB Ext Hard Disk Media (black text)
Iris (grey text) - I ran Verify Disk & Repair Disk
2010-01-22 14:20:51 -0800: Verify and Repair volume “Iris”
2010-01-22 14:20:51 -0800: Starting repair tool:
2010-01-22 14:20:51 -0800: Checking Journaled HFS Plus volume.
2010-01-22 14:20:52 -0800: Checking extents overflow file.
2010-01-22 14:20:52 -0800: Checking catalog file.
2010-01-22 14:20:56 -0800: Checking multi-linked files.
2010-01-22 14:20:56 -0800: Checking catalog hierarchy.
2010-01-22 14:20:58 -0800: Checking extended attributes file.
2010-01-22 14:21:00 -0800: Checking volume bitmap.
2010-01-22 14:21:01 -0800: Checking volume information.
2010-01-22 14:21:01 -0800: The volume Iris appears to be OK.
2010-01-22 14:21:01 -0800: Volume repair complete.
2010-01-22 14:21:01 -0800: Updating boot support partitions for the volume as required.
2010-01-22 14:21:01 -0800: Repair tool completed:
2010-01-22 14:21:01 -0800:
2010-01-22 14:21:01 -0800:
System Profiler shows the drive (on both FW & USB ports when I tried other cords). This drive does not require power and I am not using a USB hub, strictly the laptops ports. And yes, the laptop's power adapter is plugged in.
System Profiler: Device Tree log:
Iomega eGo HDD:
Capacity: 500.11 GB (500,107,862,016 bytes)
Removable Media: Yes
Detachable Drive: Yes
BSD Name: disk1
Product ID: 0x047c
Vendor ID: 0x059b (Iomega Corporation)
Version: 0.01
Serial Number: 000000066273
Speed: Up to 480 Mb/sec
Manufacturer: Iomega
Location ID: 0xfd300000
Current Available (mA): 500
Current Required (mA): 0
Partition Map Type: APM (Apple Partition Map)
S.M.A.R.T. status: Not Supported
Volumes:
Iris:
Capacity: 499.97 GB (499,972,702,208 bytes)
Writable: Yes
File System: Journaled HFS+
BSD Name: disk1s10
When I tried to run Migration Assistant, I just get the spinning search circle and none of the drives come up, just endless searching.
The fact that I got the "Improperly removed device" error when I plugged in the iPhone makes me think something weird is up and it's not actually the external drive. There is clicking/whining/noise, the drives powers up fine and is recognized by the system but the mount point is now "not mounted".
Does anyone have any idea how to fix? If you live in SF, I will buy you a beer.
J

I meant to say; "There are NO clicking/whining/noise sounds made by the external hard drive"

My other hard drives won't mount after installation of 10.4.7

i have 3 hard drives in my G4 Quicksilver. when i installed 10.4 on one of them, the other two hd's appear in disk utility but gave invalid b-tree node errors & won't mount?? disk utility reports
"Invalid B-tree node size
Volume check failed.
Error: The underlying task reported failure on exit"
all my important info is on these two hard drives so i can't just clear them and start over. any help would be greatly appreciated.

Welcome to Apple Discussions!
Usually this is indicative of a damaged directory. However, sometimes it is indicative of a dying hard drive,
or damaged peripheral interface.
Since you say all of your critical data is on the drives, I'd purchase Prosoft Data Rescue and another empty Mac formatted drive you can recover the data to and see if that is successful.
If that is not, follow my directory repair FAQ:
http://www.macmaps.com/directoryfaq.html
In the future always make sure you have at least two copies of your data at all times as my backup FAQ explains:
http://www.macmaps.com/backup.html

WD external drive won't mount after OS upgrade

After updating to latest Lion my WD 2T external drive wonlt mount. Actually it will mount momentarily and then disapear. I have loads of data on there (pictures, etc) that I do not want to lose.
There is a firmware update on the WD site that is supposed to address this issue, but it very clearly warns to back up your data before updating the firmware. If I can't mount my drive how can I back up my data?
Has anyone else had this problem and succesully fixed it?
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I think I have fixed it (fingers crossed).
I unistalled my virus protection, turned time machine off, verified the disc and remounted it.
So far, so good. It has styed mounted for a coupel of hours so far and all the data seems to be there.

External Drive Won't Mount After Power Failure

I was in the process of erasing a hard disk that was repeatedly not behaving correctly when the power went out last night. Now it won't mount at all, though another external disk I have daisy chained to it will mount. I have tried unplugging it (both the firewire cable and power) and it still won't mount. Any ideas? Thanks.

Actually, the opposite is true; you can't reformat a mounted volume. If the device isn't showing up in the left hand side of Disk Utility at all then you've probably got a hardware problem.

XServe Raid won't mount after drive replacement

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