NETGEAR is aware of a growing number of phone and online scams. To learn how to stay safe click here.
Forum Discussion
are my disks 4k aligned?
Hi
I'm trying to upgrade my ReadyNAS duo to 2TB disks (from 1TB).
I read that the sector alignement is important but I'm not too sure... so I enclose the partition.log
I believe that they are not... (please confirm) and therefore am I right in thinking that I cannot simply swap 1 disk after the other to upgrade?
(thinking of getting 2x Seagate ST2000DL003 Barracuda Green 3.5-inch 2TB SATA 6 Gb/s Drive (64MB Buffer,5900RPM) )
Many thanks in advance,
Benoit
---
Disk /dev/hdc: 999.9 GB, 999991611392 bytes
255 heads, 63 sectors/track, 121575 cylinders, total 1953108616 sectors
Units = sectors of 1 * 512 = 512 bytes
Disk identifier: 0x00000000
Device Boot Start End Blocks Id System
/dev/hdc1 2 4096001 2048000 83 Linux
Partition 1 does not end on cylinder boundary.
/dev/hdc2 4096002 4608001 256000 82 Linux swap / Solaris
Partition 2 does not end on cylinder boundary.
/dev/hdc3 4608002 1953092233 974242116 5 Extended
/dev/hdc5 4608003 1953092233 974242115+ 8e Linux LVM
Disk /dev/hde: 999.9 GB, 999991611392 bytes
255 heads, 63 sectors/track, 121575 cylinders, total 1953108616 sectors
Units = sectors of 1 * 512 = 512 bytes
Disk identifier: 0x00000000
I'm trying to upgrade my ReadyNAS duo to 2TB disks (from 1TB).
I read that the sector alignement is important but I'm not too sure... so I enclose the partition.log
I believe that they are not... (please confirm) and therefore am I right in thinking that I cannot simply swap 1 disk after the other to upgrade?
(thinking of getting 2x Seagate ST2000DL003 Barracuda Green 3.5-inch 2TB SATA 6 Gb/s Drive (64MB Buffer,5900RPM) )
Many thanks in advance,
Benoit
---
Disk /dev/hdc: 999.9 GB, 999991611392 bytes
255 heads, 63 sectors/track, 121575 cylinders, total 1953108616 sectors
Units = sectors of 1 * 512 = 512 bytes
Disk identifier: 0x00000000
Device Boot Start End Blocks Id System
/dev/hdc1 2 4096001 2048000 83 Linux
Partition 1 does not end on cylinder boundary.
/dev/hdc2 4096002 4608001 256000 82 Linux swap / Solaris
Partition 2 does not end on cylinder boundary.
/dev/hdc3 4608002 1953092233 974242116 5 Extended
/dev/hdc5 4608003 1953092233 974242115+ 8e Linux LVM
Disk /dev/hde: 999.9 GB, 999991611392 bytes
255 heads, 63 sectors/track, 121575 cylinders, total 1953108616 sectors
Units = sectors of 1 * 512 = 512 bytes
Disk identifier: 0x00000000
5 Replies
Replies have been turned off for this discussion
- Your disks are not 4k sector aligned.
I would recommend you:
1. Update to RAIDiator 4.1.7 or later (if you haven't already)
2. Do a System > Config Backup
3. Backup all data
4. Verify backup is good
5. Power down and remove both 1TB disks (label order)
6. Insert new disks and do a factory default: http://www.readynas.com/kb/faq/boot/how_do_i_use_the_boot_menu
7. Restore Config Backup
8. Restore data from backup - Thank you for the prompt reply.
This is what I was fearing... doing a backup... I do not have 750GB lying around for a backup...
Any other way?
Thanks - There is no other way to get 4k sector alignment.
If you have 2 new 2TB disks you could put one in a USB enclosure and backup to that.
I would recommend enabling fast USB writes under System > Performance and formatting the USB disk under Volumes > USB Storage to use the EXT3 filesystem.
Then after doing your backup safely unmount the USB disk and disconnect it.
Then after doing a factory default with just one of the 2TB disks installed, restore your data from backup.
Remove the 2TB disk from the USB enclosure and hot-add it (add while NAS is on) to the NAS. It will be wiped and added to the array. - I would add to the recommendation, that at some point in the near future (maybe Santa's list) a 2TB external USB drive to use for regular backups of all your critical and important data. Having all your data on a single device (the Duo is a single device, even if it does have 2 drives) is not a good idea. Remember a ReadyNAS device is not a backup plan.
- That is a good point. Any device used for primary storage should be backed up regularly.
NETGEAR Academy
Boost your skills with the Netgear Academy - Get trained, certified and stay ahead with the latest Netgear technology!
Join Us!
