我在配備 ServeRAID M5210 的 Lenovo X3650 M5 上遇到隨機寫入速度問題。
該伺服器有七個 600GB SAS 磁碟，分為兩個邏輯群組：RAID1（2 個磁碟）和 RAID10（4 個磁碟）
最後一個磁碟是全域熱備盤。
RAID 10 的連續速度為 500MB/s。讀取速度和序列速度為 250 MB/s。寫入速度幾乎是預期的 RAID 1 陣列速度的兩倍。
在 4K 寫入測試期間，問題出現，兩個 RAID 的寫入和讀取速度都低於 1 MB/S。
邏輯虛擬磁碟屬性：
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
有人有建議嗎？