# fstrim / -v
/: 19227467776 bytes were trimmed
# fstrim / -v
/: 0 bytes were trimmed
И такое же после каждой перезагрузки, цифры не меняются. Причем кол-во якобы оттримленных байтиков превышает свободное место. Это нормально?
# hdparm -I /dev/sdb
/dev/sdb:
ATA device, with non-removable media
Model Number: SAMSUNG SSD PM830 mSATA 32GB
Serial Number: S0XLNECC516120
Firmware Revision: CXM12D1Q
Transport: Serial, ATA8-AST, SATA 1.0a, SATA II Extensions, SATA Rev 2.5, SATA Rev 2.6, SATA Rev 3.0
Standards:
Used: unknown (minor revision code 0x0039)
Supported: 8 7 6 5
Likely used: 8
Configuration:
Logical max current
cylinders 16383 16383
heads 16 16
sectors/track 63 63
--
CHS current addressable sectors: 16514064
LBA user addressable sectors: 62533296
LBA48 user addressable sectors: 62533296
Logical Sector size: 512 bytes
Physical Sector size: 512 bytes
device size with M = 1024*1024: 30533 MBytes
device size with M = 1000*1000: 32017 MBytes (32 GB)
cache/buffer size = unknown
Nominal Media Rotation Rate: Solid State Device
Capabilities:
LBA, IORDY(can be disabled)
Queue depth: 32
Standby timer values: spec'd by Standard, no device specific minimum
R/W multiple sector transfer: Max = 16 Current = 16
Recommended acoustic management value: 128, current value: 0
DMA: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 udma5 *udma6
Cycle time: min=120ns recommended=120ns
PIO: pio0 pio1 pio2 pio3 pio4
Cycle time: no flow control=120ns IORDY flow control=120ns
Commands/features:
Enabled Supported:
* SMART feature set
Security Mode feature set
* Power Management feature set
* Write cache
* Look-ahead
* Host Protected Area feature set
* WRITE_BUFFER command
* READ_BUFFER command
* NOP cmd
* DOWNLOAD_MICROCODE
SET_MAX security extension
Automatic Acoustic Management feature set
* 48-bit Address feature set
* Device Configuration Overlay feature set
* Mandatory FLUSH_CACHE
* FLUSH_CACHE_EXT
* SMART error logging
* SMART self-test
* General Purpose Logging feature set
* WRITE_{DMA|MULTIPLE}_FUA_EXT
* 64-bit World wide name
* WRITE_UNCORRECTABLE_EXT command
* {READ,WRITE}_DMA_EXT_GPL commands
* Segmented DOWNLOAD_MICROCODE
* Gen1 signaling speed (1.5Gb/s)
* Gen2 signaling speed (3.0Gb/s)
* Gen3 signaling speed (6.0Gb/s)
* Native Command Queueing (NCQ)
* Host-initiated interface power management
* Phy event counters
* DMA Setup Auto-Activate optimization
Device-initiated interface power management
* Software settings preservation
* SET MAX SETPASSWORD/UNLOCK DMA commands
* WRITE BUFFER DMA command
* READ BUFFER DMA command
* Data Set Management TRIM supported (limit 8 blocks)
Security:
Master password revision code = 65534
supported
not enabled
not locked
not frozen
not expired: security count
supported: enhanced erase
6min for SECURITY ERASE UNIT. 32min for ENHANCED SECURITY ERASE UNIT.
Logical Unit WWN Device Identifier: 5002538043584d30
NAA : 5
IEEE OUI : 002538
Unique ID : 043584d30
Checksum: correct
