SSD disk

[Martin Salač]

 On Thu, 13 Mar 2014 13:59:34 +0100 (CET), Jindrich Fucik wrote:

> A tak jsem se chtěl zeptat, jaké máte kdo zkušenosti? Jaká je vlastně
> třeba podpora TRIM příkazu?
> Jelikož mám minimální nároky, tak se poohlížím po kapacitách kolem
> 30-60GB, respektive v cenách 1000-2000Kč.

 ja jsem sahl po ADATA mSATA SP300 64GB 
 http://www.adata-group.com/index.php?action=product_feature&cid=3&piid=182
 ... ted se dela model SP310.

 smartmontools se k nemu moc nemaji:
 === START OF INFORMATION SECTION ===
 Device Model:     ADATA SP300
 Serial Number:    2300447601000105
 LU WWN Device Id: 0 000000 000000000
 Firmware Version: 5.0.2d
 User Capacity:    64,023,257,088 bytes [64.0 GB]
 Sector Size:      512 bytes logical/physical
 Rotation Rate:    Solid State Device
 Device is:        Not in smartctl database [for details use: -P 
 showall]
 ATA Version is:   ATA8-ACS, ACS-2 T13/2015-D revision 3
 SATA Version is:  SATA 3.0, 3.0 Gb/s (current: 3.0 Gb/s)
 Local Time is:    Thu Mar 13 16:01:43 2014 CET
 SMART support is: Available - device has SMART capability.
 SMART support is: Enabled
 AAM feature is:   Unavailable
 APM level is:     254 (maximum performance)
 Rd look-ahead is: Enabled
 Write cache is:   Enabled
 ATA Security is:  Disabled, NOT FROZEN [SEC1]
 Unexpected SCT status 0x0010 (action_code=4, function_code=2)
 Wt Cache Reorder: N/A

 .
 .
 .

 Device Statistics (GP Log 0x04) not supported
 SATA Phy Event Counters (GP Log 0x11)
 ID      Size     Value  Description
 0x0001  2            0  Command failed due to ICRC error
 0x0003  2            0  R_ERR response for device-to-host data FIS
 0x0004  2            0  R_ERR response for host-to-device data FIS
 0x0006  2            0  R_ERR response for device-to-host non-data FIS
 0x0007  2            0  R_ERR response for host-to-device non-data FIS
 0x0008  2            0  Device-to-host non-data FIS retries
 0x0009  2            3  Transition from drive PhyRdy to drive PhyNRdy
 0x000a  2            3  Device-to-host register FISes sent due to a 
 COMRESET
 0x000f  2            0  R_ERR response for host-to-device data FIS, CRC
 0x0010  2            0  R_ERR response for host-to-device data FIS, 
 non-CRC
 0x0012  2            0  R_ERR response for host-to-device non-data FIS, 
 CRC
 0x0013  2            0  R_ERR response for host-to-device non-data FIS, 
 non-CRC
 0x0002  2            0  R_ERR response for data FIS
 0x0005  2            0  R_ERR response for non-data FIS
 0x000b  2            0  CRC errors within host-to-device FIS
 0x000d  2            0  Non-CRC errors within host-to-device FIS


 Nejake nic moc nevypovidajici "benchmarky" (stream zapisy/cteni):

 root at sklad:/usr/local/etc # dd if=/dev/zero of=/root/nuly bs=1024k 
 count=1000
 1000+0 records in
 1000+0 records out
 1048576000 bytes transferred in 6.438827 secs (162852022 bytes/sec)

 root at sklad:/usr/local/etc # dd if=/root/nuly of=/dev/null bs=1024k 
 count=1000
 1000+0 records in
 1000+0 records out
 1048576000 bytes transferred in 1.830003 secs (572991403 bytes/sec)

 root at sklad:/usr/local/etc # dd if=/dev/random of=/root/random bs=1024k 
 count=1000
 1000+0 records in
 1000+0 records out
 1048576000 bytes transferred in 113.943054 secs (9202632 bytes/sec)

 root at sklad:/usr/local/etc # dd if=/root/random of=/dev/null bs=1024k 
 count=1000
 1000+0 records in
 1000+0 records out
 1048576000 bytes transferred in 1.811169 secs (578949791 bytes/sec)


 root at sklad:/ # tunefs -p /dev/ada0s1a
 tunefs: POSIX.1e ACLs: (-a)                                disabled
 tunefs: NFSv4 ACLs: (-N)                                   disabled
 tunefs: MAC multilabel: (-l)                               disabled
 tunefs: soft updates: (-n)                                 enabled
 tunefs: soft update journaling: (-j)                       enabled
 tunefs: gjournal: (-J)                                     disabled
 tunefs: trim: (-t)                                         enabled
 tunefs: maximum blocks per file in a cylinder group: (-e)  4096
 tunefs: average file size: (-f)                            16384
 tunefs: average number of files in a directory: (-s)       64
 tunefs: minimum percentage of free space: (-m)             8%
 tunefs: space to hold for metadata blocks: (-k)            6408
 tunefs: optimization preference: (-o)                      time
 tunefs: volume label: (-L)


 ale bezi uz skoro dva roky na miniITX desce s atomem a musim zaklepat, 
 zatim ok.

 Zdravi

 Martin




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