The recordsize of all zfs is 128K, and there is only zfs on the system.
# zfs list -o recordsize
RECSIZE
128K
128K
128K
-
128K
128K
-
Then I make a file with size 1K and then copy that file to another file with
the following commands:
# mkfile 1k test4
# cp test4 test5
bash-3.00# ./fsrw.d
Event Device RW Size Offset Path
disk_io zfs2 R 4096 0 <none>
disk_io cmdk0 R 4096 0 <none>
disk_io zfs2 R 4096 0 <none>
disk_io cmdk0 R 4096 0 <none>
sc-pread . R 4 0 /var/adm/wtmpx
fop_read . R 4 0 /var/adm/wtmpx
disk_io cmdk0 R 27136 0 <none>
sc-read . R 32768 0 /test/test4
fop_read . R 32768 0 /test/test4 * ==> Since
the recordsize is 128K, I think 128K should be shown instead of 32K*
sc-write . W 1024 0
/test/test5
fop_write . W 1024 0 /test/test5 *==> Since
the recordsize is 128K, I think 128K should be shown instead of 1K, if not
,what the role does recordsize 128k play here?*
sc-read . R 32768 1 /test/test4
fop_read . R 32768 1 /test/test4
^C
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