??????SQL Server?е?IO???
???????????? ???????[ 2012/7/23 10:30:52 ] ????????
?????????I/O????????????????в鵽????????????????????????????????
select database_id??
file_id??
io_stall??
io_pending_ms_ticks??
scheduler_address
from sys.dm_io_virtual_file_stats(NULL?? NULL) iovfs??
sys.dm_io_pending_io_requests as iopior
where iovfs.file_handle = iopior.io_handle
?????????????Disk Fragmentation????
????????????????????????????SQLServer???????????NTFS??????е???????????????????????????????????????????????????????????о????????Щ?????SAN?????????????????????SAN??????????????????
????NTFS????????????????????I/O???á??????????SANs?е?Ч???????????
????????????/???????
?????????????????e??????????????????????????????????????????????????????????tempdb????I/O????????????????????????????????????????????????????
??????????????????????????????????????????????????I/O?к????????????????I/O????????
???????????????????????÷?????????????С???????????????????????????????????????????????RAID 1????????????????????SQLServer?????SAN???У??????????????????????????????????
????д?????????????????????????????????????á?
??????????????????OLTP????I/O??????С????????e?OLAP??OLTP??????????????????????????к???????????????????I/O??
??????
???·???
??????????????????
2023/3/23 14:23:39???д?ò??????????
2023/3/22 16:17:39????????????????????Щ??
2022/6/14 16:14:27??????????????????????????
2021/10/18 15:37:44???????????????
2021/9/17 15:19:29???·???????·
2021/9/14 15:42:25?????????????
2021/5/28 17:25:47??????APP??????????
2021/5/8 17:01:11