Reputation
Top tag
Next privilege 200 Rep.
See reduced ads
Badges
1 6
Impact
~5k people reached

  • 0 posts edited
  • 0 helpful flags
  • 5 votes cast
Mar
24
comment Btrfs: RAID 1 on 3+ devices
Well, there is this page, which shows marginal benefits to RAID 10 over RAID 1, carrying the caveat at the top that the benchmarks are 7 years old.
Mar
24
comment Btrfs: RAID 1 on 3+ devices
It may not be the most certain answer, but my results indicate that your assumptions are correct, so I'm accepting it. I'm not certain about your comment on performance differences, though. It's certainly true of hardware RAID 1 vs 10, but I'm not sure if Btrfs sees a performance boost from RAID 10. Furthermore, what it calls RAID 1 is still striped across multiple devices here, so it's still more akin to RAID 10 than real RAID 1. If I'd read your reply before converting, I would've done before and after benchmarks, but I'm not spending another week converting the array to RAID 10 and back.
Mar
24
accepted Btrfs: RAID 1 on 3+ devices
Mar
23
awarded  Notable Question
Mar
13
asked PHP PECL Sphinx module won't install
Mar
13
answered PHP PECL Sphinx module won't install
Mar
11
comment Btrfs: RAID 1 on 3+ devices
However, to answer your question, I did convert and the result seems to be consistent with my expectations. Btrfs does a poor job of indicating actual available disk space, but you can see in the output of btrfs fi sh that the extra space on the 4 TB drive is being taken advantage of, and (2.83+1.93+1.93+1.95)/2~=4.30 as expected. I recently sustained a drive failure and successfully rebuilt with no data loss, so I can confirm firsthand that redundancy is intact.
Jan
30
answered Automated sudo and screen command
Jan
28
asked Btrfs: RAID 1 on 3+ devices
Aug
20
accepted btrfs won't run from cron
Aug
20
answered btrfs won't run from cron
Aug
16
awarded  Editor
Aug
16
revised btrfs won't run from cron
added 1 character in body
Aug
16
comment btrfs won't run from cron
Yes, cron is running, although ls -l | grep cron isn't the command to tell me that. pgrep cron returned a PID. I also added a job * * * * * touch /root/foo, which worked as expected.
Aug
16
asked btrfs won't run from cron
Dec
30
awarded  Popular Question
Dec
7
comment curl http_code of 000
After some more searching, it seems that 000 is intended to indicate that the connection timed out. However, when I see this while running directly from the command line, the curl commands exit almost immediately (more quickly than 200 responses) rather than hanging as you'd expect. Still trying to determine if this issue is client-side or server-side.
Nov
13
awarded  Tumbleweed
Nov
6
awarded  Scholar
Nov
6
awarded  Supporter