I am running ubuntu 18.04. No lvm or encryption. I am attempting to run trim on a brand new external sdd, western digital wd green 120 gb in a usb external case ADATA ED600 that shows trim available on hdparm.
yet fstrim reports
sudo fstrim -v /media/****/644f7d88-df12-4d0e-9423-bdf787d0fd78 fstrim: /media/****/644f7d88-df12-4d0e-9423-bdf787d0fd78: the discard operation is not supported
I cannot figure out what else I could do to get fstrim to run.
hdparm output below.
****:~$ sudo hdparm -I /dev/sdb /dev/sdb: ATA device, with non-removable media Model Number: WDC WDS120G2G0A-00JH30 Serial Number: 1821B3802831 Firmware Revision: UE450000 Media Serial Num: Media Manufacturer: 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 0x0110) Supported: 9 8 7 6 5 Likely used: 9 Configuration: Logical max current cylinders 16383 0 heads 16 0 sectors/track 63 0 -- LBA user addressable sectors: 234455040 LBA48 user addressable sectors: 234455040 Logical Sector size: 512 bytes Physical Sector size: 512 bytes Logical Sector-0 offset: 0 bytes device size with M = 1024*1024: 114480 MBytes device size with M = 1000*1000: 120040 MBytes (120 GB) cache/buffer size = unknown Form Factor: 2.5 inch 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 = 1 Current = 1 Advanced power management level: disabled 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 * DOWNLOAD_MICROCODE Advanced Power Management feature set SET_MAX security extension * 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 * 64-bit World wide name * WRITE_UNCORRECTABLE_EXT command * {READ,WRITE}_DMA_EXT_GPL commands * Segmented DOWNLOAD_MICROCODE unknown 119[8] * Gen1 signaling speed (1.5Gb/s) * Gen2 signaling speed (3.0Gb/s) * Gen3 signaling speed (6.0Gb/s) * Native Command Queueing (NCQ) * Phy event counters * READ_LOG_DMA_EXT equivalent to READ_LOG_EXT Device-initiated interface power management Software settings preservation Device Sleep (DEVSLP) * SANITIZE feature set * BLOCK_ERASE_EXT command * SET MAX SETPASSWORD/UNLOCK DMA commands * WRITE BUFFER DMA command * READ BUFFER DMA command * DEVICE CONFIGURATION SET/IDENTIFY DMA commands * Data Set Management TRIM supported (limit 8 blocks) * Deterministic read data after TRIM Security: Master password revision code = 65534 supported not enabled not locked not frozen not expired: security count not supported: enhanced erase 2min for SECURITY ERASE UNIT. Logical Unit WWN Device Identifier: 5001b448b60a0235 NAA : 5 IEEE OUI : 001b44 Unique ID : 8b60a0235 Device Sleep: DEVSLP Exit Timeout (DETO): 50 ms (drive) Minimum DEVSLP Assertion Time (MDAT): 31 ms (drive) Checksum: correct
additional comments
eventually got it to work.
****:/media$ sudo hdparm --user-master u --security-set-pass 123456 /dev/sdb security_password: "123456" /dev/sdb: Issuing SECURITY_SET_PASS command, password="123456", user=user, mode=high ****:/media$ sudo hdparm --user-master u --security-erase 123456 /dev/sdb security_password: "123456" /dev/sdb: Issuing SECURITY_ERASE command, password="123456", user=user SG_IO: bad/missing sense data, sb[]: 70 00 01 00 00 00 00 0a 00 00 00 00 00 1d 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
It waits for some 10 seconds and returns with no further information. The security "enabled" flag turns to "not enabled". I am assuming that does the trick.