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Forum Discussion
ReadyNAS Duo Upgrade to 2TB Hard Drives
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 ST31000528AS Disk 2 Seagate ST31000528AS New...
Here;s what you should do
1. 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 data
2. Verify backup is good
3. Upgrade to the latest RAIDiator (currently 4.1.7: http://www.readynas.com/RAIDiator_4_1_7_Notes) if you haven't already
4. Do a System > Config Backup
5. Factory default: http://www.readynas.com/forum/faq.php#How_do_I_reset_the_ReadyNAS_to_factory_default%3F
6. Restore Config Backup
7. Restore data from backup
1. 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 data
2. Verify backup is good
3. Upgrade to the latest RAIDiator (currently 4.1.7: http://www.readynas.com/RAIDiator_4_1_7_Notes) if you haven't already
4. Do a System > Config Backup
5. Factory default: http://www.readynas.com/forum/faq.php#How_do_I_reset_the_ReadyNAS_to_factory_default%3F
6. Restore Config Backup
7. Restore data from backup
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