Could anyone help me with this issue.
Currently we are suffering from low performance during some peak times during comercial hours.
Searching for a cause, I started a Perfstat and found in aligment session that all my Solaris ZFS luns shows a behaviour of spread read and writes IOps in all buckets, and all my Windows Hosts are hitting 80-100% os read/writes ops in bucket 4 or 7 even with partitions offset divisible to 4096.
Dont know what to do...
Solaris ZFS example :
lun:/vol/corretorbancos/bancos-W-DJKoXT6c8S:read_align_histo.0:12%
lun:/vol/corretorbancos/bancos-W-DJKoXT6c8S:read_align_histo.1:11%
lun:/vol/corretorbancos/bancos-W-DJKoXT6c8S:read_align_histo.2:11%
lun:/vol/corretorbancos/bancos-W-DJKoXT6c8S:read_align_histo.3:9%
lun:/vol/corretorbancos/bancos-W-DJKoXT6c8S:read_align_histo.4:13%
lun:/vol/corretorbancos/bancos-W-DJKoXT6c8S:read_align_histo.5:14%
lun:/vol/corretorbancos/bancos-W-DJKoXT6c8S:read_align_histo.6:11%
lun:/vol/corretorbancos/bancos-W-DJKoXT6c8S:read_align_histo.7:13%
lun:/vol/corretorbancos/bancos-W-DJKoXT6c8S:write_align_histo.0:23%
lun:/vol/corretorbancos/bancos-W-DJKoXT6c8S:write_align_histo.1:11%
lun:/vol/corretorbancos/bancos-W-DJKoXT6c8S:write_align_histo.2:4%
lun:/vol/corretorbancos/bancos-W-DJKoXT6c8S:write_align_histo.3:7%
lun:/vol/corretorbancos/bancos-W-DJKoXT6c8S:write_align_histo.4:2%
lun:/vol/corretorbancos/bancos-W-DJKoXT6c8S:write_align_histo.5:6%
lun:/vol/corretorbancos/bancos-W-DJKoXT6c8S:write_align_histo.6:17%
lun:/vol/corretorbancos/bancos-W-DJKoXT6c8S:write_align_histo.7:4%
lun:/vol/corretorbancos/bancos-W-DJKoXT6c8S:read_partial_blocks:0%
lun:/vol/corretorbancos/bancos-W-DJKoXT6c8S:write_partial_blocks:20%
Windows Host SQL Server example :
lun:/vol/teamworks/db-W-DJKoX2Y8N1:read_align_histo.0:0%
lun:/vol/teamworks/db-W-DJKoX2Y8N1:read_align_histo.1:100%
lun:/vol/teamworks/db-W-DJKoX2Y8N1:read_align_histo.2:0%
lun:/vol/teamworks/db-W-DJKoX2Y8N1:read_align_histo.3:0%
lun:/vol/teamworks/db-W-DJKoX2Y8N1:read_align_histo.4:0%
lun:/vol/teamworks/db-W-DJKoX2Y8N1:read_align_histo.5:0%
lun:/vol/teamworks/db-W-DJKoX2Y8N1:read_align_histo.6:0%
lun:/vol/teamworks/db-W-DJKoX2Y8N1:read_align_histo.7:0%
lun:/vol/teamworks/db-W-DJKoX2Y8N1:write_align_histo.0:0%
lun:/vol/teamworks/db-W-DJKoX2Y8N1:write_align_histo.1:99%
lun:/vol/teamworks/db-W-DJKoX2Y8N1:write_align_histo.2:0%
lun:/vol/teamworks/db-W-DJKoX2Y8N1:write_align_histo.3:0%
lun:/vol/teamworks/db-W-DJKoX2Y8N1:write_align_histo.4:0%
lun:/vol/teamworks/db-W-DJKoX2Y8N1:write_align_histo.5:0%
lun:/vol/teamworks/db-W-DJKoX2Y8N1:write_align_histo.6:0%
lun:/vol/teamworks/db-W-DJKoX2Y8N1:write_align_histo.7:0%
lun:/vol/teamworks/db-W-DJKoX2Y8N1:read_partial_blocks:0%
lun:/vol/teamworks/db-W-DJKoX2Y8N1:write_partial_blocks:0%
Need help
