Partitioning a RAID volume?

If I want 4 partitions on the XServe RAID, and I have one RAID volume made of all 14 disks, can I partition that RAID volume or do I need to choose 3-4 disks and create individual RAID volumes/partitions for them?
The reason I'm asking is that I'm wondering if each partition would still span over 14 disks, even if the RAID volume was devided into 4 partitions (to keep the maximum speed on each partition).
Thanks,
Patrick

Hi Patrick,
You have a couple options...
Probably the best one is "slicing." On the RAID itself, you can create a 7-disk RAID 5 set (or 6 disks and use the 7th as a hot spare -- this gives a little more safety should a drive fail) and then slice it into a number of LUNs that will be exported separately. Each will show up as a separate "chunk" of storage to your hosts.
The alternative is to go into Disk Utility on a connected host and actually partition the storage there. You see a 1 TB volume for example, and you can just partition it into 4 or 5 volumes, no problem.
Just so you know, the two RAID controllers on the Xserve RAID are independent. So the largest RAID set the RAID itself can do is 7 disks. If you wish to stripe all 14 into a single large volume, you must do it via disk utility.

Similar Messages

  • Resize raid volumes?

    Hello,
    I have a raid 5 (hardware) on my pro. With two raid volumes. Now i have change of mind with the size of those volumes. I know i can resize partitions, but is there also a way that i can resize a partion and give the free space to a diverent raid volume? (so can i resize the raid volumes?)
    Thank you for the help
    Edgar

    Unless the RAID software you are using permits it, then no. While the RAID is in tact you cannot alter the volumes that make up the array. You first have to delete the array which will in turn delete the data stored on the array.
    This is one of the main reasons why RAIDs should be structured with drives, not partitions on drives.

  • How do I resize a RAID volume?

    Hi,
    I have an '08 8x3Ghz macpro with Apple's RAID card. I have 3x750GB drives and two volumes configured of about equal size. I'd like to shrink one of the volumes and grow the other. I can see how to reduce the size of an existing partition in the volumes (and indeed have done so on the volume that I want to shrink), but I can't see how to actually shrink one volume and then expand the other. Thanks!
    Cheers, Cos.

    I have the same issue (I think) !!!
    I have a RAID Card with 4 Raptors (150 GB each) connected as RAID 0
    now first I made 2 volumes each around 300 GB
    now I deleted one and I want to expand the other one (which contains my OS and my files) and take over the deleted one,
    how I can do that ????
    Thank you

  • Problems attaching RAID volume to Time Capsule USB

    I just got an Icy Dock RAID enclosure and two discs to go with it. I want to attach it to my time capsule and use it as both a network disc and as another back up disc adding extra capacity to my Time Capsule.
    I set the dip settings on the back of the enclosure (necessary or not I don't know) and plugged it directly into my laptop. I opened up Apple's disc utility and created a RAID volume. That new RAID volume mounted and I could even go into Time machine setup and see it as a choice for a backup volume. So far so good but I still want the connivence of my wireless backups.
    So I ejected the enclosure and plugged it into the Time Capsule's USB connection. It didn't show up as a backup volume or as a network drive. Going into the disc tab of the Time Capsule setup utility I do see the two drives within the enclosure but have no option to erase them or mount them. They just show up as their raw selves as if I hadn't even initialized them into the raid partition.
    Now if I dismount the enclosure and plug it back into my computer and break apart the raid volume into two separate discs and plug it back into the time capsule I see each of those appear both as a network volume and an option for backup.
    Now of course I could use it that way but I'd prefer to have some redundancy that's why I got the enclosure in the first place. Any ideas how I can get the RAID volume to mount? Or somehow get redundancy using the two discs? If it requires command line instructions I'm OK with that I just don't have any idea of where to start.
    Thanks,
    peat

    So just in case somebody else runs into this problem I wanted to post what I discovered. I had to reformat the drives I installed in the enclosure. Once I did that they were seen as separate drives by my computer and by the time capsule.
    I did what I shouldn't have done which is use software to create a RAID drive. These software created RAID drives don't mount on the time capsule as the following thread notes.
    http://discussions.apple.com/thread.jspa?messageID=9996146
    What I should have done and eventually did do is format the drives correctly, set the dip switches for RAID 1, push the reset button on the back of the RAID enclosure and create a hardware RAID device. This hardware device now looks and feels like one drive. It mounts up as a network drive on the time capsule no problem.
    Furthermore now that it's a visible network drive I can select it in time machine preferences and use it as my destination drive for time machine backups. It hasn't fully backed up yet but it certainly seems to be working so I think this would contradict the previous post. I am able to hang a drive off my time capsule and "extend" the capacity of my time capsule. I didn't copy over the sparse bundle file so time capsule's starting all over again but I suspect I could have copied it and continued with incremental backups.

  • Z77A-GD65: Disks shown but not selectable on creating a RAID volume

    Mainboard: Z77A-GD65
    CPU: Intel Core i7 3770K
    RAM: 2x Corsair DDR3-1600 XMS3 4GB
    HDDs: 2x Seagate Barracuda SATA3 7200.12 6GB/s
    Upgraded System with new MB etc. yesterday and removed the old HDD.
    After enabling RAID in BIOS, I went to the RAID settings with Ctrl+I. The RAID setup displays both HDDs with correct description and storage size, but when I was trying to create a new RAID volume the "disc selection" option is not selectable unless "Recovery" is chosen as RAID level. On RAID level "Recovery" both disks are selectable but no RAID volume is created during the process. When RAID level 0 or 1 is chosen still the correct size of the potential volume is calculated by the RAID setup.
    Additionally, I tried the same procedure with both "RAID hot-plug" enabled and disabled in BIOS.
    The HDDs are plugged into SATA-ports 1+2. No OS installed yet.

    After several unsuccessful attempts of formatting and partitioning the disks, I installed the OS. Subsequent use of the thereafter installed Intel Rapid Storage Technology (IRST) enabled me to created the RAID volume under Windows, which is now additionally shown on the IRST page after the POST screen.
    So the RAID volume creation worked, but it still takes me wonder why I haven't been able to do this after the POST screen in the first place  .
    Well, problem still kind of solved.

  • Raid Volumes Randomly Dismounting

    Okay first a warning .. this is going to be a long post!
    Overview: When my raid is connected through my Fibre Channel Switch it randomly dismounts.
    Specifics:
    Xserve G5 (10.4.7) with the LSI Dual-Channel 2GB Fibre Channel PCI-X HBA & Fibre Channel Utility 2.0
    Xserve RAID - Each side with its own Raid 5 , hot spare - no masking & latest firmware
    Exabyte Magnum 224 FC
    Qlogic Sanbox 5200 Series (12 port) - Latest Firmware (configured with two zones (port not WWN) ; Zone 1: Port 1 HBA, Both Xraid | Zone 2: Port 0 HBA, Exabyte
    Background : This used to ALL work! Recently we began to experience drastic slow downs when writing to the raid and common sense not working free space, which was the problem, was the last thing I checked. Before that though I tried swapping cables, replacing the raid controller, redoing zoning, straight connect - Obviously none of this was the issue. *note here: at this point I am using an identical Fibre Channel Card in my Xserve from my G4 - a careless maneuver broke the Apple installed card whilst it was laying on a table.*
    When I got things working (made room on the volume) I happened to be in a configuration the circumvented the switch.. raid directly into the host and things , as said, worked fine. The next night I took the systems down to put everything on the switch again to allow a back-up to be ran. Now is when the current behavior begins. Randomly and without recognizable patterns both raid volumes would dismount from the host. Checking Raid Admin shows the volumes as being in order and all lights are green.
    This time I fear my switch has gone and after time spent with Qlogic (and zilliions of different configurations) a new switch is sent out in the mean time back to a straight connection and things are working fine. New switch arrives, is configured, and immediately problem persists. Qlogic/Apple suggest the midplane on the raid is bad (even though it works straight through). I happen to have a brand new in box XRAID (with current firmware) so I set that up put in the drives from the old raid and the problem persists again when plugged into the switch. Direct to host things work fine.
    So I read some documentation on Apple and Fibre channel and made a few changes to HBA ports and Switch Port Settings and came to the following scenario... Volumes stayed mounted through an entire work day, but after a brief time into a backup the volumes unmounted.
    Here is some more specific info about my exact setup as it last failed...
    ZONE 1 (zoned by port not WWN)
    Switch Ports 0, 1, 2
    HBA Port 1 into Switch Port 0
    Raid into Switch Ports 1, 2
    All ports are identifying themselves to switch as switch topology
    HBA port configured as Topology: Point-to-Point, Speed: 2Gb/s
    SW Port 0 configed as State: Online, Speed: auto, Type: Detect, I/O Stream Guard: Enable, Device Scan: Disable
    SW Port 1, 2 configed as State: Online, Speed: auto, Type: Detect, I/O Stream Guard: Auto, Device Scan: Enable
    ZONE 2 (zoned by port not WWN)
    Switch Ports 8, 9
    HBA Port 0 into Switch Port 9
    Exabyte into Switch Port 8
    Port 8 identifying as Loop topology, 9 as switch
    HBA port configured as Topology: Auto, Speed: Auto
    SW Port 8 configed as State: Online, Speed: auto, Type: Detect, I/O Stream Guard: Auto, Device Scan: Enable
    SW Port 9 configed as State: Online, Speed: auto, Type: Detect, I/O Stream Guard: Enable, Device Scan: Disable
    I realize that some of these settings, particularly those on the HBA are different between ports, but we have tried virtually every combination (I think)
    Around the time of the backup job system.log on the host has these entries:
    Mar 7 17:55:41 files kernel[0]: FusionMPT: Notification = 5 (External Bus Reset) for SCSI Domain = 3
    Mar 7 17:55:41 files kernel[0]: FusionMPT: External Bus Reset for SCSI Domain = 3
    Mar 7 17:55:41 files kernel[0]: FusionMPT: Notification = 7 (Link Status Change) for SCSI Domain = 3
    Mar 7 17:55:41 files kernel[0]: FusionFC: Link is down for SCSI Domain = 3.
    Mar 7 17:55:41 files kernel[0]: FusionMPT: Notification = 8 (Loop State Change) for SCSI Domain = 3
    Mar 7 17:55:41 files kernel[0]: FusionFC: Loop Initialization Packet for SCSI Domain = 3.
    Mar 7 17:55:41 files kernel[0]: FusionMPT: Notification = 9 (Logout) for SCSI Domain = 3
    Mar 7 17:55:41 files kernel[0]: FusionMPT: Notification = 7 (Link Status Change) for SCSI Domain = 3
    Mar 7 17:55:41 files kernel[0]: FusionFC: Link is active for SCSI Domain = 3.
    Mar 7 17:55:41 files kernel[0]: FusionMPT: Notification = 6 (Rescan) for SCSI Domain = 3
    Mar 7 17:55:41 files kernel[0]: FusionMPT: Notification = 5 (External Bus Reset) for SCSI Domain = 3
    Mar 7 17:55:41 files kernel[0]: FusionMPT: External Bus Reset for SCSI Domain = 3
    Mar 7 17:55:41 files kernel[0]: FusionMPT: Notification = 7 (Link Status Change) for SCSI Domain = 3
    Mar 7 17:55:41 files kernel[0]: FusionFC: Link is down for SCSI Domain = 3.
    Mar 7 17:55:41 files kernel[0]: FusionMPT: Notification = 8 (Loop State Change) for SCSI Domain = 3
    Mar 7 17:55:41 files kernel[0]: FusionFC: Loop Initialization Packet for SCSI Domain = 3.
    Mar 7 17:55:41 files kernel[0]: FusionMPT: Notification = 9 (Logout) for SCSI Domain = 3
    Mar 7 17:55:41 files kernel[0]: FusionMPT: Notification = 7 (Link Status Change) for SCSI Domain = 3
    Mar 7 17:55:41 files kernel[0]: FusionFC: Link is active for SCSI Domain = 3.
    Mar 7 17:55:41 files kernel[0]: FusionMPT: Notification = 6 (Rescan) for SCSI Domain = 3
    Mar 7 17:55:41 files kernel[0]: FusionMPT: Notification = 5 (External Bus Reset) for SCSI Domain = 3
    Mar 7 17:55:41 files kernel[0]: FusionMPT: External Bus Reset for SCSI Domain = 3
    Mar 7 17:55:41 files kernel[0]: FusionMPT: Notification = 7 (Link Status Change) for SCSI Domain = 3
    Mar 7 17:55:41 files kernel[0]: FusionFC: Link is down for SCSI Domain = 3.
    Mar 7 17:55:41 files kernel[0]: FusionMPT: Notification = 8 (Loop State Change) for SCSI Domain = 3
    Mar 7 17:55:41 files kernel[0]: FusionFC: Loop Initialization Packet for SCSI Domain = 3.
    Mar 7 17:55:41 files kernel[0]: FusionMPT: Notification = 9 (Logout) for SCSI Domain = 3
    Mar 7 17:55:41 files kernel[0]: FusionMPT: Notification = 7 (Link Status Change) for SCSI Domain = 3
    Mar 7 17:55:41 files kernel[0]: FusionFC: Link is active for SCSI Domain = 3.
    Mar 7 17:55:41 files kernel[0]: FusionMPT: Notification = 6 (Rescan) for SCSI Domain = 3
    Mar 7 17:55:41 files kernel[0]: FusionMPT: Notification = 5 (External Bus Reset) for SCSI Domain = 3
    Mar 7 17:55:41 files kernel[0]: FusionMPT: External Bus Reset for SCSI Domain = 3
    Mar 7 17:55:41 files kernel[0]: FusionMPT: Notification = 7 (Link Status Change) for SCSI Domain = 3
    Mar 7 17:55:41 files kernel[0]: FusionFC: Link is down for SCSI Domain = 3.
    Mar 7 17:55:41 files kernel[0]: FusionMPT: Notification = 8 (Loop State Change) for SCSI Domain = 3
    Mar 7 17:55:41 files kernel[0]: FusionFC: Loop Initialization Packet for SCSI Domain = 3.
    Mar 7 17:55:41 files kernel[0]: FusionMPT: Notification = 9 (Logout) for SCSI Domain = 3
    Mar 7 17:55:41 files kernel[0]: FusionMPT: Notification = 7 (Link Status Change) for SCSI Domain = 3
    Mar 7 17:55:41 files kernel[0]: FusionFC: Link is active for SCSI Domain = 3.
    Mar 7 17:55:41 files kernel[0]: FusionMPT: Notification = 6 (Rescan) for SCSI Domain = 3
    Mar 7 17:55:42 files kernel[0]: FusionMPT: Notification = 5 (External Bus Reset) for SCSI Domain = 3
    Mar 7 17:55:42 files kernel[0]: FusionMPT: External Bus Reset for SCSI Domain = 3
    Mar 7 17:55:42 files kernel[0]: FusionMPT: Notification = 7 (Link Status Change) for SCSI Domain = 3
    Mar 7 17:55:42 files kernel[0]: FusionFC: Link is down for SCSI Domain = 3.
    Mar 7 17:55:42 files kernel[0]: FusionMPT: Notification = 8 (Loop State Change) for SCSI Domain = 3
    Mar 7 17:55:42 files kernel[0]: FusionFC: Loop Initialization Packet for SCSI Domain = 3.
    Mar 7 17:55:42 files kernel[0]: FusionMPT: Notification = 9 (Logout) for SCSI Domain = 3
    Mar 7 17:55:42 files kernel[0]: FusionMPT: Notification = 7 (Link Status Change) for SCSI Domain = 3
    Mar 7 17:55:42 files kernel[0]: FusionFC: Link is active for SCSI Domain = 3.
    Mar 7 17:55:42 files kernel[0]: FusionMPT: Notification = 6 (Rescan) for SCSI Domain = 3
    Mar 7 17:55:42 files kernel[0]: disk4s3: I/O error.
    Mar 7 17:55:42 files kernel[0]: FusionMPT: Notification = 5 (External Bus Reset) for SCSI Domain = 3
    Mar 7 17:55:42 files kernel[0]: FusionMPT: External Bus Reset for SCSI Domain = 3
    Mar 7 17:55:42 files kernel[0]: FusionMPT: Notification = 7 (Link Status Change) for SCSI Domain = 3
    Mar 7 17:55:42 files kernel[0]: FusionFC: Link is down for SCSI Domain = 3.
    Mar 7 17:55:50 files kernel[0]: s3: I/O error.
    =======
    Then followed by a ton of various I/O errors
    =======
    Mar 7 17:56:42 files kernel[0]: disk4s3: I/O error.
    Mar 7 17:56:42 files kernel[0]: disk4s3: I/O error.
    Mar 7 17:56:42 files kernel[0]: disk4s3: I/O error.
    Mar 7 17:56:42 files kernel[0]: FusionMPT: Notification = 6 (Rescan) for SCSI Domain = 3
    Mar 7 17:56:42 files kernel[0]: disk4s3: I/O error.
    Mar 7 17:56:42 files kernel[0]: disk4s3: I/O error.
    =======
    Finally by media not present errors which end the log
    =======
    Mar 7 17:56:42 files kernel[0]: disk4s3: media is not present.
    Mar 7 17:56:42 files kernel[0]: disk4s3: media is not present.
    Mar 7 17:56:42 files kernel[0]: disk4s3: media is not present.
    Mar 7 17:56:42 files kernel[0]: disk4s3: media is not present.
    Mar 7 17:56:42 files kernel[0]: disk4s3: media is not present.
    Mar 7 17:56:42 files kernel[0]: disk4s3: media is not present.
    Mar 7 17:56:42 files kernel[0]: disk4s3: media is not present.
    Mar 7 17:56:42 files kernel[0]: disk4s3: media is not present.
    Mar 7 17:56:42 files kernel[0]: disk4s3: media is not present.
    Mar 7 17:56:42 files kernel[0]: disk5s3: media is not present.
    Mar 7 17:56:42 files kernel[0]: jnl: dojnlio: strategy err 0x6
    Mar 7 17:56:42 files kernel[0]: jnl: end_transaction: only wrote 0 of 8192 bytes to the journal!
    Mar 7 17:56:42 files kernel[0]: jnl: close: journal 0x4c21bb4, is invalid. aborting outstanding transactions
    Mar 7 17:56:42 files kernel[0]: disk4s3: media is not present.
    Mar 7 17:56:42 files kernel[0]: disk4s3: media is not present.
    Mar 7 17:56:42 files kernel[0]: disk4s3: media is not present.
    Mar 7 17:56:45 files kernel[0]: jnl: close: journal 0x4c21c98, is invalid. aborting outstanding transactions
    And that folks is it.. I'm up for any and all suggestions, questions, comments etc.. I'm absolutely desperate here!
    Please, please does anyone have any ideas what's going on here.
    Thanks,
    James Nierodzik

    Hi Roger, thanks for the reply.
    Throughout the battles I did try cables that were not in the scenario to no avail so I don't think it's a cablling issue though I suppose it still could be.
    Well into the backup was last night's failure point.. days previous, when through the switch, it had failed at periodic points throughout the day. I could not tie those periods to greater than normal I/O demand though.
    As for cooling the components are kept in a well circulated room that is kept 24x7 at 62 degrees with an alarm on the cooling unit so I am about as certain as can be that cooling is not a factor.

  • Can't enable ACLs on a RAID volume

    Hi all,
    I have OSX 10.4.11 running on an Xserve G5 ppc. There are 2 Xserve RAID volumes attached by fibre channel.
    I've been having issues recently with permissions: some users are creating or modifying files/folders and other users in the same group are then unable to access them. Viewing the permissions shows that group access is set to 'None'. I can correct this in the 'Sharing' section of WGM but that doesn't resolve the underlying issue.
    I want to use ACLs to control access to data on the 2 RAID volumes, one of which also contains the users' network accounts. Unfortunately the 'Enable Access Control Lists' tick box is greyed out so I cannot activate them. On the other RAID volume all three tick boxes are available.
    Why might this be?
    John.

    Found the answer. The volume was not correctly formatted. I copied the data, reformatted the volume, copied back the data and enabled ACLs.

  • UCSM 2.1 Local disk configuration policy and raid volumes

    Hi!
    If i use Any configuration as local disk configuration policy and do the raid settings directly to the RAID-cards, am i able to have two raid volumes on C-series under UCSM management?
    What i would like to do with C240M3 with 6 local disks: 2 disk raid1 and 4 disk raid0
    So i would use:
    "Any Configuration—For a server configuration that carries forward the local disk configuration without any changes."
    As UCS servers Raid guide indicates:
    "Maximum of One RAID Volume and One RAID Controller in Integrated Rack-Mount Servers
    A rack-mount server that has been integrated with Cisco UCS Manager can  have a maximum of one RAID volume irrespective of how many hard drives  are present on the server. "
    Is this paragraph limitation of GUI not able to set several volumes or hard fact without "Any configuration" workaround?

    I did some testing about this issue:
    Changed Local Disk Configuration to "Any Configuration"
    Two virtual disks can be created from Raid card's WebBIOS
    These disks are visible to RedHat Installation.
    UCSM shows Any configuration for the Storage Local Disk policy
    Actual Disk Configuration has faulty information - WebBios is the only place to check the RAID status?
    Next step: I'll do the same for the production

  • Mounting Xserve Raid Volumes

    I'm relatively new to Xserve RAID and I hope this isn't a topic that's already been covered.
    If I unmount (or eject) a RAID volume, how do I re-mount it. Other than rebooting the system.
    The RAID volumes don't appear in /etc/fstab. Where exactly does the system store the volume which are to be mounted at boot.
    Thanks..
    -- Bob

    You might see the volumes in disk utility, and you can remount them from there.
    Otherwise, you could unplug and re-plug the cable, and they'll show up, if you have physical access.

  • OSX Lion Disk Utility won't verify/repair RAID volumes

    SInce I upgraded to Lion (now at 10.7.4) I can't use the Disk utility to verify or repair the disk catalog (disk first Aid) on apple soft RAID volumes. These volumes were created in 10.6 use the Apple RAID feature of disk utility.
    I have one striped and one concatenated volume - neither will work. Press the button and the progress bar flashes for a fraction of a second, then nothing. no error, no message in the window - just no repsonse. Works fine on non raid volumes in the same disk enclosure -Firmtek Seritek/5PM, with seritek 2ME4-E sata card.
    Not sure I really want to recreate and recopy the drives....
    Any ideas? Seaches haven't turned up this specific issue.

    A quick search in these forums for permissions or *permissions problem* reveals many posts the past four months.
    In a nutshell, repairing permissions w/Leopard takes anywhere from 10-40 minutes, depending on what's installed and what's contained in /Library/Receipts/bom/. The repair permissions operation has changed in Leopard. The stalled progress bar is an unresolved bug (they haven't figured out how to make it work whilst it's checking or rebuilding the a.receiptdb, in /Library/Receipts/db/. To see what's really going on, open that folder in a Finder window, select list view, launch Disk Utility, select your boot volume, and click on repair permissions. Watch the Finder window flash files that are being read and checked against the current a.receiptdb file. That's what's taking all the time and freezing the progress bar. Once that's finished, the progress bar starts moving and the permissions are being checked and repaired. Also note, that you won't get any *they were repaired* message back for any that are noted to be incorrect.

  • Apple DU vs SoftRAID's drivers for RAID volumes, performancewise?

    Hi,
    For some time I have been using SoftRAID's (http://www.softraid.com/) drivers (v. 4.0.7) for an OS+apps SSD and my users' accounts on a 2*2TB RAID0 (WD Caviar Blacks) volume. At present the User volume is about 50% full (2 of 4TB).
    I am considering to make the users' accounts volume a 2*3TB RAID1 (Hitachis) for safety reasons. My questions to the knowledgable people in this forum are:
    1) I am aware that a RAID1 will be slower than a RAID0 volume. But will an Apple DU RAID1 or a SoftRAID RAID1 volume likely be faster?
    2) Using SoftRAID's drivers on disks/volumes prohibits use of some troubleshooting utilities such as iPartition, DriveGenius, etc. Hence, is it adviseable to put SoftRAID drivers also on non-RAID volumes, such as my SSD boot volume?
    I am hoping somebody with experience in these things can advise.
    Thanks.

    Softraid always worked with TTPro and Disk Warrior, and never needed the others, and I wouldn't let iPartition touch someone else's.
    Apple mirror I rate as weaker, doesn't use a stripe read, doesn't alert to I/O errors. don't they mention in features their implementation of mirror rebuilds and faster background rebuilds when needed?
    Personally, a good backup sets and clones. Mirror if you use three rdives so even under a failure you still have two and it can do background rebuild. Otherwise, dont' use mirror. 3TB mirrors are huge long and slow to copy. Really think you need to worry about hardware drive failure, huh?
    I've used SoftRAID from 2.2.1 days a decade ago. They support is one of if not the best I have had the pleasure to deal with and help me through as well as given me an education.

  • 802.11n Base using USB Raid Volumes?

    Hi All,
    Got the new Airport base station, pulled out the old one, factory defaulted my three other Airport Express base stations, and then joined them as WDS extenders. All is good. Won't be testing throughput yet all I am still all PPC.
    Bought the new base station for the USB disk sharing as I have computers all over the home and this was going to be great to facilitate sharing!
    Before it arrived, I purchased a new USB eBOX-U Eight (8) drive enclosure from Firewire Depot (as reviewed by AMUG).
    Very nice box for $265. Loaded six new 400GB (newegg.com @ $105/ea.) and a couple of old misc. drives. Formated top two as raid 0, next two as raid 0 and then mirrored the two together (I just went through the worst hard disk crash I've ever had with a stripped 0 volume, I never want to go through this again - 100% data loss).
    Anyways, last 2 400GB drives as mirrored raid.
    Fire the puppy up and for an overnight backup device, it's perfect. I couldn't use it for encoding video but for going to bed and letting my computer backup cheaply and safely, I am delighted!
    So now I'm ready for the new Airport base station, I can share these massive, safe drives over the wireless network and get all of my computers backed-up.
    Nope.
    The base station refuses to recognize the Macintosh-formated arrays, it only sees one drive and that unusable.
    Any ideas? I can't find any prohibitions to such a configuration.
    JP
    G5 Quad   Mac OS X (10.4.8)  

    Why doesn't the new base station support Mac software RAID volumes? I can't believe there aren't more people up in arms over this missing functionality. A Mac product not supporting a Mac software configuration? Seems downright silly.

  • Xserve RAID volume maintenance

    A new client has an Xserve RAID (firmware 1.5) in which the first 7 drive modules are populated, and configured into a 1.01 TB Level 5 array. This array has been in use for (estimated) 2.5 to 3 years (based on the power-on hours of the component hard drives). As far as my client knows, no maintenance has been performed on the RAID volume. Should we be using the First Aid feature of Disk Utiliity or something like Disk Warrior on this volume? The Xserve RAID is connected (via Fiber) to a Power Mac G4 (Mirrored Drive Doors) running Mac OS X Server 10.3.9. Please advise.

    Are they having problems with the RAID that you think requires maintenance?
    FWIW I've got several XServe RAIDs in my network, some of them the same age as this one, and I've never done anything to it in terms of maintenance or housekeeping.
    If you're not having problems with it, I wouldn't worry.

  • Migrating RAID volume disks between T2000s

    I understand that migrating RAID volumes between T2000s is not supported, as specified in http://docs.sun.com/source/819-2549-12/ontario-volume_man.html which states "Volume migration (relocating all RAID volume disk members from one Sun Fire T2000 chassis to another) is not supported. If this operation must be performed, please contact Sun Service.". If I understand this correctly, it is because the LSI hardware RAID controller writes some controller-specific or system-specific information to the disks when it creates a RAID volume.
    I need to move disks between T2000 systems, and I do not need to preserve data on the disks. Is it sufficient to simply remove the RAID volume from the disks (i.e. raidctl -d), then move them to the new T2000 system? There has been some suggestion within my company that the disks need to be completely reformatted, but I haven't been able to locate any requirement to reformat the disks in either Sun documentation or these forums.

    I don't believe we came to a conclusion on this issue. I will check with my team and get back to you. We may have an opportunity to rebuild a T2000 system in the next few weeks, and, if so, we'll gather the data and report back.

  • Using WMI to Partition Disks & Create Volumes

    Hi All,
    I have been searching for a method of partitioning and creating volumes which does not use Diskpart, but have had a difficult time finding one.
    I have a python library which runs on a Linux machine and remotely administers a Windows host via OpenSSH, and Linux and Solaris hosts via Ssh, in addition to various disk arrays located on a SAN. We have begun looking for a solution native to Windows, but
    have been having a hard time finding any way of cutting up disks, short of using Diskpart. In the currently implementation, Diskpart is used, however a lot of screen scraping of the shell occurs and it can be very temperamental.
    The hopeful solution is to use pyWinRM (or some other python module which can remotely administer Windows from Linux) to execute commands remotely. This has been successful in a number of simpler instances (getting drive letters, getting installed program
    info, etc) but has failed when trying to do things that require interactivity (i.e. Diskpart). For your references, the pyWinRM module can only execute one command at a time, per shell, which is similar to PsExec and Paramiko.
    Any suggestion or ideas are encouraged and welcomed

    Hi AdamGHall,
    As far as I know, WMI can not be used to create disk partiction, if you can run a windows powershell cmdlet from linux, maybe this cmdlet
    New-Partition can be helpful for you to create disk partition.
    I hope this helps.

Maybe you are looking for

  • Publishing no longer works in latest Edge

    Publish seems to not be working in this latest Edge. All of our projects published using the latest version get stuck on the preloader. Not sure why but yesterday everything published fine. Today under the new Edge all of our files get stuck in the p

  • LSMW - Sales Order creation using IDoc

    Hello, I'm receiving a file containing different category of products and need to create a sales order (using IDoc or BAPI) per category. The input file contains UPC code, I use a SELECT statement to check the category and append the UPC code to the

  • I need to restore iPad 2 without OS updating at same time

    Over the last few days I have finally taken the plunge to update the OS for my iPad 2...which I have been putting off for ages.  Now this really should be a simple, straight forward task that should not require any specific technical knowledge to acc

  • Converting PDF to grayscale

    I am using Adobe CS 3, Acrobat 8 Professional, on Mac OS 10.4.11 I am trying to convert a full color PDF document to grayscale. I tried to click Advanced > Print Production > Convert Colors and then Grayscale, but it is not working. I tried clicking

  • Canon ip4000r stopped printing over usb after update to 10.5.7

    hi there! i have a canon pixma ip4000r which is connected to my macbook pro via usb. since the update to 10.5.7 it stopped printing. printer's joblist receives a printjob, displays "printing" but nothing happens. i tried to reinstall the printer but