1,117 reputation
41935
bio website
location United States
age
visits member for 5 years, 4 months
seen Dec 3 at 22:27

Oct
28
awarded  Good Answer
Aug
7
awarded  Yearling
Jul
22
awarded  Famous Question
Jul
12
awarded  Popular Question
Jul
2
awarded  Curious
Jun
25
awarded  Famous Question
Jun
18
comment Multiple disk controller cards and RAID1
And yes, btrfs has a RAID10 mode that you could make with 2 drives (you could even make it with 1 drive and 4 partitions), but with only 2 drives I'm not sure you could see a speed benefit and a redundancy benefit simultaneously. Seems like RAID1 with 2 drives would give you the same performance and redundancy as RAID10 with two drives...
Jun
18
comment Multiple disk controller cards and RAID1
This might be a bad assumption, but I'm assuming that for SATA2 interfaces and above and for rotating media (not SSDs), the I/O speed is largely limited by the drive speed - 3Gb/s = 300MB/s = more than twice as much as I've ever seen a HDD sustain. And small data bursts are severely limited by seek time. So HDD matching would be more important than controller matching. But you're right that experimenting is likely the only way to know for sure for a given configuration.
Jun
16
comment Multiple disk controller cards and RAID1
Thanks for the quick response, but this is a btrfs RAID array - so it's 100% software-based. That means you can achieve RAID with one drive attached to each controller, and the RAID options of the controllers don't matter, since the controllers are functioning as single-device controllers, not RAID controllers.
Jun
16
asked Multiple disk controller cards and RAID1
Jun
14
comment Growing a ZFS pool from populated ext4 disks
Great answer - you went into exactly as much detail as I needed and answered a few other questions I had as well. Will start saving up for the "best configuration"...
Jun
14
revised Growing a ZFS pool from populated ext4 disks
Added "ext4" to title for clarity
Jun
14
comment Growing a ZFS pool from populated ext4 disks
Good point. The largest stuff is mostly mythtv recordings - I've backed up all the media I'd miss if it were lost and can't replace.
Jun
14
asked Growing a ZFS pool from populated ext4 disks
Jun
1
comment How to prevent hard drive from spinning down Windows 7?
Maybe not the correct answer for the OP's exact question, but this solved my spin-down problem.
Apr
26
awarded  Notable Question
Apr
3
awarded  Famous Question
Aug
7
awarded  Yearling
Jun
18
awarded  Popular Question
May
23
awarded  Notable Question