P410i + SSD trim

sync; dd if=/dev/zero of=tempfile bs=1M count=1024; sync
1024+0 записей получено
1024+0 записей отправлено
1073741824 байт (1,1 GB, 1,0 GiB) скопирован, 22,2898 s, 48,2 MB/s

Smart Array P410i in Slot 0 (Embedded)
   Bus Interface: PCI
   Slot: 0
   Serial Number: 5001438017FDAB90
   Cache Serial Number: PBCDH0CRH1W4PA
   RAID 6 (ADG) Status: Disabled
   Controller Status: OK
   Hardware Revision: C
   Firmware Version: 6.64
   Rebuild Priority: Medium
   Expand Priority: Medium
   Surface Scan Delay: 15 secs
   Surface Scan Mode: Idle
   Queue Depth: Automatic
   Monitor and Performance Delay: 60  min
   Elevator Sort: Enabled
   Degraded Performance Optimization: Disabled
   Inconsistency Repair Policy: Disabled
   Wait for Cache Room: Disabled
   Surface Analysis Inconsistency Notification: Disabled
   Post Prompt Timeout: 0 secs
   Cache Board Present: True
   Cache Status: OK
   Cache Ratio: 25% Read / 75% Write
   Drive Write Cache: Disabled
   Total Cache Size: 512 MB
   Total Cache Memory Available: 400 MB
   No-Battery Write Cache: Disabled
   Cache Backup Power Source: Capacitors
   Battery/Capacitor Count: 1
   Battery/Capacitor Status: OK
   SATA NCQ Supported: True

   Array: A
      Interface Type: Solid State SATA
      Unused Space: 0  MB
      Status: OK
      Array Type: Data



      Logical Drive: 1
         Size: 3.6 TB
         Fault Tolerance: 1+0
         Heads: 255
         Sectors Per Track: 32
         Cylinders: 65535
         Strip Size: 256 KB
         Full Stripe Size: 1024 KB
         Status: OK
         Caching:  Enabled
         Unique Identifier: 600508B1001C88F10BF9DE30CA8B9D03
         Disk Name: /dev/sda
         Mount Points: / 3.5 TB
         OS Status: LOCKED
         Logical Drive Label: ADC6B5165001438017FDAB903B67
         Mirror Group 0:
            physicaldrive 1I:1:1 (port 1I:box 1:bay 1, Solid State SATA, 1 TB, OK)
            physicaldrive 1I:1:2 (port 1I:box 1:bay 2, Solid State SATA, 1 TB, OK)
            physicaldrive 1I:1:3 (port 1I:box 1:bay 3, Solid State SATA, 1 TB, OK)
            physicaldrive 1I:1:4 (port 1I:box 1:bay 4, Solid State SATA, 1 TB, OK)
         Mirror Group 1:
            physicaldrive 2I:1:5 (port 2I:box 1:bay 5, Solid State SATA, 1 TB, OK)
            physicaldrive 2I:1:6 (port 2I:box 1:bay 6, Solid State SATA, 1 TB, OK)
            physicaldrive 2I:1:7 (port 2I:box 1:bay 7, Solid State SATA, 1 TB, OK)
            physicaldrive 2I:1:8 (port 2I:box 1:bay 8, Solid State SATA, 1 TB, OK)
         Drive Type: Data

UUID=2798a8e7-d4d6-4ade-9175-5d98d4ac737e /               ext4   discard,errors=remount-ro  0       1

systemctl status fstrim.timer
● fstrim.timer - Discard unused blocks once a week
   Loaded: loaded (/lib/systemd/system/fstrim.timer; enabled; vendor preset: enabled)
   Active: active (waiting) since Tue 2021-02-02 22:10:36 MSK; 10h ago
  Trigger: Mon 2021-02-08 00:00:00 MSK; 4 days left
     Docs: man:fstrim
fstrim -v /
fstrim: /: the discard operation is not supported