Radian RMS-200/8G 800001-001 NVRAM Accelerator Edge Card | eBay
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100$ \ piece
B\o also available.
These are very good for ZFS SLOG, have 1 myself
Here the results of mine:
Code:
root@freenas[~]# smartctl -a /dev/nvme2
smartctl 6.6 2017-11-05 r4594 [FreeBSD 11.2-STABLE amd64] (local build)
Copyright (C) 2002-17, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF INFORMATION SECTION ===
Model Number: RMS-200
Serial Number: 0007552
Firmware Version: 5fb7565c
PCI Vendor/Subsystem ID: 0x1cc7
IEEE OUI Identifier: 0x00e0cf
Controller ID: 0
Number of Namespaces: 1
Namespace 1 Size/Capacity: 8,581,545,984 [8.58 GB]
Namespace 1 Utilization: 0
Namespace 1 Formatted LBA Size: 512
Local Time is: Sat Jan 25 14:21:34 2020 +04
Firmware Updates (0x09): 4 Slots, Slot 1 R/O
Optional Admin Commands (0x0006): Format Frmw_DL
Optional NVM Commands (0x0006): Wr_Unc DS_Mngmt
Supported Power States
St Op Max Active Idle RL RT WL WT Ent_Lat Ex_Lat
0 + 25.00W - - 0 0 0 0 100 100
Supported LBA Sizes (NSID 0x1)
Id Fmt Data Metadt Rel_Perf
0 - 512 0 3
1 - 512 8 3
2 - 4096 0 0
3 - 4096 8 0
=== START OF SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED
SMART/Health Information (NVMe Log 0x02, NSID 0xffffffff)
Critical Warning: 0x00
Temperature: 47 Celsius
Available Spare: 0%
Available Spare Threshold: 0%
Percentage Used: 0%
Data Units Read: 120,551,124,807 [61.7 PB]
Data Units Written: 401,690,223,661 [205 PB]
Host Read Commands: 524,460,251
Host Write Commands: 51,503,093,269
Controller Busy Time: 532
Power Cycles: 11
Power On Hours: 31,746
Unsafe Shutdowns: 1
Media and Data Integrity Errors: 0
Error Information Log Entries: 0
Error Information (NVMe Log 0x01, max 63 entries)
No Errors Logged
root@freenas[~]# diskinfo -wS /dev/nvd2
/dev/nvd2
512 # sectorsize
8581545984 # mediasize in bytes (8.0G)
16760832 # mediasize in sectors
0 # stripesize
0 # stripeoffset
RMS-200 # Disk descr.
0007552 # Disk ident.
Yes # TRIM/UNMAP support
0 # Rotation rate in RPM
Synchronous random writes:
0.5 kbytes: 24.8 usec/IO = 19.7 Mbytes/s
1 kbytes: 25.3 usec/IO = 38.6 Mbytes/s
2 kbytes: 25.4 usec/IO = 76.9 Mbytes/s
4 kbytes: 26.4 usec/IO = 147.9 Mbytes/s
8 kbytes: 27.1 usec/IO = 288.5 Mbytes/s
16 kbytes: 33.1 usec/IO = 471.9 Mbytes/s
32 kbytes: 41.0 usec/IO = 762.1 Mbytes/s
64 kbytes: 56.1 usec/IO = 1115.0 Mbytes/s
128 kbytes: 85.9 usec/IO = 1454.9 Mbytes/s
256 kbytes: 95.7 usec/IO = 2612.2 Mbytes/s
512 kbytes: 143.7 usec/IO = 3480.3 Mbytes/s
1024 kbytes: 252.7 usec/IO = 3957.7 Mbytes/s
2048 kbytes: 470.1 usec/IO = 4254.5 Mbytes/s
4096 kbytes: 912.6 usec/IO = 4382.9 Mbytes/s
8192 kbytes: 1702.6 usec/IO = 4698.8 Mbytes/s