Currently I am running with two 1TB HDD's but I need more capacity so have bought two 2TB HDD's.Current HDD's--------------------Disk 1 Seagate ST31000528ASDisk 2 Seagate ST31000528ASNew HDD's--------------------Seagate ST32000542ASHitachi HDS722020ALA330I want to be able to add the new 2TB HDD's without losing any data.What are the steps to accomplish this?Do I just take out Disk 2 and put in the new HDD, wait for it to sync, and then remove Disk 1 and put this newly synced drive in that slot?

yes, you are right.Please do not swap the second 2T drive before the first 2T drive sync finished .

Here;s what you should do1. You should ensure you have a good backup of important data primarily stored on the ReadyNAS. RAID is not a backup and you will be breaking that RAID when you replace a disk. So during the time the replacement disk is syncing you are vulnerable to your other old disk failing.2. You should upgrade to the latest RAIDiator (currently 4.1.7: http://www.readynas.com/RAIDiator_4_1_7_Notes). Note that the update requires a reboot.3. If one of your disks is failing/bad obviously it should be replaced first. You can check the health of the disks under Status > Health > SMART+ in Frontview. If neither disk looks to be failing/bad then you can choose whichever disk you want to replace first.4. Let's assume you replace disk 2 first. You would e.g. take disk 2 out and put the new SeaGate in slot 2. You would then wait for the resync to complete.5. Then you would remove disk 1 and put the Hitachi in slot one. Don't reorder the order of the disks. Simply replace the existing disks with new disks one by one waiting for the resync to complete before replacing the next disk. Once the resync has completed on the final disk replacement you should be prompted to reboot for expansion to take place.Note that whilst the disks you have chosen may not be 4k sector disks, going forward all new 2TB disks released will be. So if you can it would be better to do the following:1. Backup all data2. Verify backup is good3. Upgrade to the latest RAIDiator (currently 4.1.7: http://www.readynas.com/RAIDiator_4_1_7_Notes) if you haven't already4. Do a System > Config Backup5. Factory default: http://www.readynas.com/forum/faq.php#How_do_I_reset_the_ReadyNAS_to_factory_default%3F6. Restore Config Backup7. Restore data from backup

Thanks for that great info, very detailed.I have successfully added both hard drives now but it says on the Frontview home screen...Volume C: Online, X-RAID, 2 disks, 95% of 925 GB usedBut under Status -> Health it does say they are 1.86TB. It hasn't prompted for me to reboot since syncing could this be why?Disk 1 Hitachi HDS722020ALA330 1862 GBDisk 2 Seagate ST32000542AS 1862 GB

Try doing a reboot anyway, wait 10 minutes and if Frontview still hasn't given an alert about expansion try another reboot.If you still have problems then there are some further things that can be tried.

Brilliant. Rebooted and got the alert that it needed to do a few things for the expansion to happen.All sorted now, thanks for your help!

ReadyNAS Duo Upgrade to 2TB Hard Drives

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mdgm-ntgr
NETGEAR Employee Retired
Feb 12, 2012
pengjn please don't revive a dead thread in future. Start a new thread and if necessary refer to an existing one.

1. The disks you're getting are 4k sector ones.
2. Only X-RAID volumes are expandable.
3. Perform the steps I suggested above (latest firmware is now 4.1.8). After step 5, discover the NAS in RAIDar (http://www.readynas.com/downloads), click setup and choose Flex-RAID. Then before restoring the config backup, delete the volume created by default and create two new ones.

pengjn

Aspirant

Feb 12, 2012

mdgm wrote:
pengjn please don't revive a dead thread in future. Start a new thread and if necessary refer to an existing one.

1. The disks you're getting are 4k sector ones.
2. Only X-RAID volumes are expandable.
3. Perform the steps I suggested above (latest firmware is now 4.1.8). After step 5, discover the NAS in RAIDar (http://www.readynas.com/downloads), click setup and choose Flex-RAID. Then before restoring the config backup, delete the volume created by default and create two new ones.

mdgm wrote:
pengjn please don't revive a dead thread in future. Start a new thread and if necessary refer to an existing one. 1. The disks you're getting are 4k sector ones. 2. Only X-RAID volumes are expandable. 3. Perform the steps I suggested above (latest firmware is now 4.1.8). After step 5, discover the NAS in RAIDar (http://www.readynas.com/downloads), click setup and choose Flex-RAID. Then before restoring the config backup, delete the volume created by default and create two new ones.

Sorry - didn't realise that reviving old thread was bad! :)

How do I do step one? I'm guessing that I need a USB drive enclosure and I can use one of the new 2TB disks for the backup until the first 2TB has finished syncing?

mdgm-ntgr
NETGEAR Employee Retired
Feb 12, 2012
You could do it that way if you like.

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ReadyNAS Duo Upgrade to 2TB Hard Drives

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