Are 2TB 2.5" drives even available yet?
2TB is way more than we need for our offsite backups currently. 300GB more than enough for a full month's worth of weekly full backups and daily incrementals.
I'd love to see someone's face when I tell them they've got to take a RAID unit home with them as an offsite backup. Or even 2x 3.5" drives in rugged enclosures. And RAID != backup.
The unit we're looking to backup is our mail server which has a 4 drive RAID 10. The onsite backup volume is an LV on a RAID 6 array mounted over iSCSI. The offsite backups will be copied from this RAID 6 volume.
Why am I looking at SSDs for robust offsite backup?
Because they stand a better chance at surviving shocks that would normally destroy a conventional HDD.
Where are drives more likely to be subjected to shocks?
Sat in a server cabinet or in an enclosure on a desk? Or being thrown around in someone's bag/case.
I realise the cost per-GB is higher with SSDs - I can do basic maths. But if I'm going to have decent offsite backup then I'd like it to be the most robust available. Without any moving parts or tape.
So back to my original question... so there's no manufacturer wear calculations available for SSDs? Just guestimates based on typical usage patterns?
Good news on the power front. Didn't think they'd use significantly less power.