I was using a 5 minute interval.
I did another test with 1 second interval:
data1 41.6G 5.65G 0 0 63.4K 0
data2 58.2G 9.81G 0 447 0 2.31M
So, the 63K read bandwidth doesn't show any read operations still. Is
that still rounding?
What exactly is an operation? (just any IO access?)
This could just be rounding - what interval did you use for zpool? I believe
1 read per 5 seconds will be shown as '0' (rounded from 0.2); the read
bandwidth in your output is very small, suggesting that something like
this may be happening.
Brendan
I plan to have 3 disks and am debating what I should do with them, if I
should do a
raidz (single or double parity) or just a mirror.
As per some of the blog entries, I've been reading that raidz may not be
that suitable for lot of
random reads.
With the # of reads below, I don't see any reason why I should consider
that. I would like to
proceed with doing a raidz with double parity, please give me some feedback.
Thanks,
Anil
capacity operations bandwidth
pool used avail read write read write
---------- ----- ----- ----- ----- ----- -----
data1 41.6G 5.67G 2 19 52.3K 198K
data2 58.2G 9.83G 3 44 60.5K 180K
---------- ----- ----- ----- ----- ----- -----
data1 41.6G 5.66G 0 21 11.3K 151K
data2 58.2G 9.83G 0 44 158 140K
---------- ----- ----- ----- ----- ----- -----
data1 41.6G 5.66G 0 18 436 117K
data2 58.2G 9.83G 0 44 203 149K
---------- ----- ----- ----- ----- ----- -----
data1 41.6G 5.66G 0 20 1.49K 167K
data2 58.2G 9.83G 0 44 331 154K
---------- ----- ----- ----- ----- ----- -----
data1 41.6G 5.66G 0 21 791 166K
data2 58.2G 9.83G 0 46 199 167K
---------- ----- ----- ----- ----- ----- -----
data1 41.6G 5.66G 0 25 686 364K
data2 58.2G 9.83G 0 45 35.9K 152K
---------- ----- ----- ----- ----- ----- -----
data1 41.6G 5.66G 0 19 698 129K
data2 58.2G 9.83G 0 43 81 146K
---------- ----- ----- ----- ----- ----- -----
data1 41.6G 5.66G 0 19 1.45K 141K
data2 58.2G 9.82G 0 44 59 139K
---------- ----- ----- ----- ----- ----- -----
data1 41.6G 5.66G 0 19 436 124K
data2 58.2G 9.82G 0 43 71 145K
---------- ----- ----- ----- ----- ----- -----
data1 41.6G 5.66G 0 21 412 150K
data2 58.2G 9.82G 0 41 114 138K
---------- ----- ----- ----- ----- ----- -----
data1 41.6G 5.66G 0 20 1.35K 128K
data2 58.2G 9.82G 0 47 918 160K
---------- ----- ----- ----- ----- ----- -----
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