My Mac refused to recognise the 6TB WD drive I replaced last time, but it has no problems with Seagate I took from QNAP. Most of my drives, say 80% are from WD and I'd say 80% of the drives that fail are also WD, so in hard drives that I've used so far (from 5MB to 8TB) I see no very large difference in failure rate. Sometimes it can take, very, very long time to get a drive replaced. It's a drive that includes data from other drives while they are on a waiting list for the main drive to be replaced (but not as the only backup). But let's see, if the QNAP does not format it properly, I'll move it to a FreeNAS and format it as ZFS and buy another 6TB WD instead to QNAP. That's why it is not on any kind of RAID configuration (like none of the drives on this QNAP are). (I distrust Seagate).įor me it's a backup of a backup, so speed is irrelevant. I personally wouldn't touch this drive with a 10 foot pole. You should be able to format it as a single Ext4 partition if you do so from a Linux PC, (including a PC booted to a Linux LiveDVD temporarily). Code: Select all cat /proc/mdstat Personalities : md1 : active raid5 sdd3 sda3 sdb3 sdc3 8760934848 blocks super 1.0 level 5, 64k chunk, algorithm 2 bitmap: 5/22 pages, 65536KB chunk md256 : active raid1 sda2(S) sdb2(S) sdc2 sdd2 530112 blocks super 1.0 bitmap: 0/1 pages, 65536KB chunk md13 : active raid1 sdd4 sda4 sdb4 sdc4 458880 blocks super 1.0 bitmap: 1/1 pages, 65536KB chunk md9 : active raid1 sdd1 sda1 sdb1 sdc1 530048 blocks super 1.0 bitmap: 1/1 pages, 65536KB chunk unused devices: If you are determined to use that Seagate anyway, I would recommend only using it as an ' external' drive, so that it is not used in RAID at all.

Reformat seagate drive