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Downgrading iOmega ix2-200 drives challenges (part 2)

Posted in Uncategorized by alfredomarchena on January 6, 2015

this is a part 2 of my last post “Downgrading iOmega ix2-200 drives challenges” and resumes from that

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so after all my iscsi data was copied over to my machine, i  decided to plug the drive back in and do an offline scan…

offline

eventually that failed, so there is no repairing the drive.

on bay 1 i inserted a new 1tb SATA drive and left the existing 2tb SATA drive in there. i tried to rebuild the array but of course the smaller drive is smaller and it was not possible.

however i was determined to do this so what i did was SSH into the NAS using WinSCP and copied the ISCSI files to my computer (just in case).

what i did after i had a copied the files was stop the SCSI service.

disable

from then i broke the RAID array – this told me it needs to delete existing data to change drive configuration which is what i expected (on the below picture you can sort of see the different drive sizes behind the message box)

breaking raid

eventually this completes and i have no data on a non RAID drive. then i powered off the NAS and proceeded to remove the existing 2tb drive to replace with a new 1tb drive (so both drives will be new and 1tb in size each). i powered on NAS expecting to possibly see a WLoD (White Light of Death) which is what happens when neither drive has the boot files/partition. to my suprise it came back up.

again i went to drive management and proceeded to change from protection none to protection mirror (RAID 1) – again, i have to confirm all data will be erased.

create raid

once that is clicked RAID will build. youll end up with an empty RAID 1 (mirror) NAS. after this was done, i went and created a ‘fake’ ISCI drive, named it the same name as the previous one, fired up WinSCP and went back to /mnt/pools/A/A0/iSCSI found the new ISCSI there. then i re-stopped the ISCSI service, renamed the file (in case what im trying to do doesnt work) and proceeded to upload my old ISCI file back to the same place as the new file

iscsi move back

after this is done, i now have a fake ISCSI file and the real ISCSI file i need. went back and turned on iSCSI service on NAS and proceeded to try and configure my ISCI initiator on my Windows computer to point to NAS.

low and behold, the old file is accepted and im prompted with a BitLocker encryption challenge (my ISCSI was BitLocker encrypted). i authenticated and now can see the file system again.

it took about 3 days since copying the ISCSI files up and down takes a really long time but i have the NAS on RAID 1 with 2 new drives and the ISCSI files still intact.

now i have a big ISCSI container which is 500gb in size. since i dont have this much space, the approach to take is create the fake iSCSI target file, stop the ISCI service in nas, delete the file, upload the intended one, turn on ISCI service and continue as if nothing happened.

i hope that helps who ever stumbles into this. important to note that after the RAID is broken it seems to place the boot files in both drives which allowed me to remove the 2nd drive and end up with all new drives, unless the latest FW somehow puts the boot sector/files NAS RAM and not drives. either way its good to know that you can do a two drive swap and still use the NAS.

5 Responses

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  1. Kirk said, on January 29, 2015 at 9:52 AM

    Alfredo – I have some basic question here since this is going to be my 1st time to do an upgrade using a bigger disk. I am assuming that Any 2 TB Sata disk is compatible. Any rpm greater than 5900 compatible with iomega StorCenter ix2-200 as well? Do you have any recommended brand/model to use for 2TB with rpm greater than 5900? Thanks!

    • alfredomarchena said, on September 15, 2015 at 6:35 AM

      stay away from GREEN (energy efficient) drives, pay the extra for RED drives which are more for NAS usage. also I’m using 7200RPM and they’re not running hot. but anything faster and of course how many read/writes you’re doing may increase temperature.

  2. Helder said, on September 4, 2015 at 6:54 AM

    Hi,
    I discovered you blog due fact that I have one of this machines but mine has 2 500GB disks (they are the original ones) in RAID 1. Since the storage is becoming a bit short I wanted to upgrade the storage to 2 1TB disks (or maybe even 2TB disks). I removed disk #2 and placed a 1TB disk in the second slot. The NAS reboot fine, it detects the new disk, display the warning in dashboard, there is a red light next to the exclamation mark in the case and that’s it! it doesn’t do anything else. I can’t find any options to rebuild the RAID, nothing! I don’t know where the CD that came with the NAS is so I can only access the NAS via IP address in the web browser. Can you give some light on what to taking in to account that I’m not that advanced in these kind of things. I mean I know a few things about PC’s and setting up the NAS was kind of easy (it’s kind of noob proof) but now I’m kind of stuck. Thanks

    • alfredomarchena said, on September 15, 2015 at 6:39 AM

      i haven’t touched my was updates in a few years (since i wrote the post) but some things to suggest
      1. see if there was a RAID setup that was affected when one of the drives was removed
      2. check disks and see if it shows up there
      3. break the RAID (hope you have a backup otherwise backup elsewhere before breaking RAID)
      4. build as 2 separate drives – make sure both are seen
      5. shut down – remove smaller drive
      6. power on make sure it powers on with just one drive
      7. power off and add second large drive
      8. power on and make sure it boots
      9. if it doesn’t try moving drive placements (2nd slot go on 1st and vice versa)
      10. turn on (if it turns on do #11)
      11. raid 1 & rebuild raid array again (i don’t suggest raid 0 since its like driving without a seatbelt… highly dangerous)
      12. copy all your data back


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