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Forum Discussion
dirkdigs
Feb 19, 2014Aspirant
Re: stripe size
what is the stripe size of an X-RAID2 array? is it a fixed setting or can it be changed?
killerus2
Nov 11, 2014Aspirant
Hmm link works for now - but few hours ago - when i was writting my port - it was down...
Sync is over...
Nas1:/etc# cat /proc/mdstat
Personalities : [raid0] [raid1] [raid10] [raid6] [raid5] [raid4]
md2 : active raid5 sda3[0] sdf3[6] sde3[4] sdd3[3] sdc3[2] sdb3[1]
9743962880 blocks super 1.2 level 5, 256k chunk, algorithm 2 [6/6] [UUUUUU]
hdparm -t /dev/md2
/dev/md2:
Timing buffered disk reads: 838 MB in 3.01 seconds = 278.74 MB/sec
I can admit - that last resoults was 180MB/s
It is more than 125MB/s you right, but as U obviously know too with this command i measure hdd read in the beginning.
This speed at the end of disk would be max half of it.
Second, as i mentioned before i got lots of large files, and somtimes addons must move or copy them inside NAS from one place to another - like transmission.
180MB vs 280MB would be nice improvement...
Now the last test - make it all works after reboot and check on samba...
Last round FIGHT.
NAS performance tester 1.7 http://www.808.dk/?nastester
Running warmup...
Running a 800MB file write on Z: 5 times...
Iteration 1: 115,44 MB/sec
Iteration 2: 116,14 MB/sec
Iteration 3: 117,20 MB/sec
Iteration 4: 117,09 MB/sec
Iteration 5: 114,32 MB/sec
-----------------------------
Average (W): 116,04 MB/sec
-----------------------------
Running a 800MB file read on Z: 5 times...
Iteration 1: 118,10 MB/sec
Iteration 2: 116,96 MB/sec
Iteration 3: 116,85 MB/sec
Iteration 4: 117,64 MB/sec
Iteration 5: 117,58 MB/sec
-----------------------------
Average (R): 117,43 MB/sec
-----------------------------
prior to last downed link - it works now - tested as above
Sync is over...
Nas1:/etc# cat /proc/mdstat
Personalities : [raid0] [raid1] [raid10] [raid6] [raid5] [raid4]
md2 : active raid5 sda3[0] sdf3[6] sde3[4] sdd3[3] sdc3[2] sdb3[1]
9743962880 blocks super 1.2 level 5, 256k chunk, algorithm 2 [6/6] [UUUUUU]
hdparm -t /dev/md2
/dev/md2:
Timing buffered disk reads: 838 MB in 3.01 seconds = 278.74 MB/sec
I can admit - that last resoults was 180MB/s
It is more than 125MB/s you right, but as U obviously know too with this command i measure hdd read in the beginning.
This speed at the end of disk would be max half of it.
Second, as i mentioned before i got lots of large files, and somtimes addons must move or copy them inside NAS from one place to another - like transmission.
180MB vs 280MB would be nice improvement...
Now the last test - make it all works after reboot and check on samba...
Last round FIGHT.
NAS performance tester 1.7 http://www.808.dk/?nastester
Running warmup...
Running a 800MB file write on Z: 5 times...
Iteration 1: 115,44 MB/sec
Iteration 2: 116,14 MB/sec
Iteration 3: 117,20 MB/sec
Iteration 4: 117,09 MB/sec
Iteration 5: 114,32 MB/sec
-----------------------------
Average (W): 116,04 MB/sec
-----------------------------
Running a 800MB file read on Z: 5 times...
Iteration 1: 118,10 MB/sec
Iteration 2: 116,96 MB/sec
Iteration 3: 116,85 MB/sec
Iteration 4: 117,64 MB/sec
Iteration 5: 117,58 MB/sec
-----------------------------
Average (R): 117,43 MB/sec
-----------------------------
prior to last downed link - it works now - tested as above
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