I've a problem of random writing speed on a Lenovo X3650 M5 with ServeRAID M5210.
The server has seven 600GB SAS disks divided into two logical groups: a RAID1 (2 disks) and a RAID10 (4 disks)
The last disk is a global hot spare.
The RAID 10 has 500MB/s in seq. reads and 250 MB/s in seq. writes and it almost double the speed of the RAID 1 array as expected.
The problems rise during 4K write test with a result of less then 1 MB/S for both RAIDs in both writes and reads.
The logical virtual disks properties:
RAID 1:
Write Policy: Write Through
Read Policy: Always Read Ahead
IO Policy: Direct IO
Disk Cache Policy: Unchanged
Background Initialization: Enabled
RAID 10:
Write Policy: Write Through
Read Policy: Always Read Ahead
IO Policy: Direct IO
Disk Cache Policy: Disabled
Background Initialization: Enabled
The Server Profile:
SERVER---
Server IP: xxx.xxx.xxx.xxx
Server Name: XXX
OS name: Windows Server 2012
OS Version: 6.2
OS Architecture: x86_64
Driver Name: megasas2.sys
Driver Version: 6.706.06.00
Application Version: MegaRAID Storage Manager - 15.03.01.00
HARDWARE---
Controller: Controller0: ServeRAID M5210(Bus 21,Dev 0,Domain 0)
Status: Optimal
Firmware Package Version:24.7.0-0052
Firmware Version: 4.270.00-4288
BBU: NO
Enclosure(s): 1
Drive(s): 7
Virtual Drive(s): 2
Enclosures---
PRODUCT NAME TYPE STATUS
Backplane Sgpio OK
Drives---
CONNECTOR PRODUCT ID VENDOR ID STATE DISK TYPE CAPACITY POWER STATE
Port 4 - 7 AL13SEB600 LENOVO-X Online SAS 557.861 GB On
Port 4 - 7 AL13SEB600 LENOVO-X Online SAS 557.861 GB On
Port 4 - 7 AL13SEB600 LENOVO-X Online SAS 557.861 GB On
Port 4 - 7 AL13SEB600 LENOVO-X Online SAS 557.861 GB On
Port 0 - 3 AL13SEB600 LENOVO-X Online SAS 557.861 GB On
Port 0 - 3 AL13SEB600 LENOVO-X Online SAS 557.861 GB On
Port 0 - 3 AL13SEB600 LENOVO-X Global Hot Spare SAS 557.861 GB On
Virtual Drive(s):---
TARGET ID NAME CAPACITY STATE RAID LEVEL MegaRAID RECOVERY
0 - 557.861 GB Optimal RAID 1 NO
3 VD_1 1.090 TB Optimal RAID 10 NO
Anyone has any advice?
