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On Wed, Jun 17, 2015 at 12:24:55PM +1000, Adam Carter wrote: |
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> /* devices that don't properly handle queued TRIM commands */ |
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> Micron_M500* |
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> Crucial_CT*M500* |
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> Micron_M5[15]0* |
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> Crucial_CT*M550* |
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> Crucial_CT*MX100* |
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> Samsung SSD 8* |
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> |
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> from drivers/ata/libata-core.c |
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|
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Then read further: |
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|
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* Whitelist drives that are known to reliably return zeroes |
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* after TRIM. |
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|
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* The intel 510 drive has buggy DRAT/RZAT. Explicitly exclude |
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* that model before whitelisting all other intel SSDs. |
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*/ |
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{ "INTEL*SSDSC2MH*", NULL, 0, }, |
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|
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{ "Micron*", NULL, ATA_HORKAGE_ZERO_AFTER_TRIM, }, |
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{ "Crucial*", NULL, ATA_HORKAGE_ZERO_AFTER_TRIM, }, |
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{ "INTEL*SSD*", NULL, ATA_HORKAGE_ZERO_AFTER_TRIM, }, |
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{ "SSD*INTEL*", NULL, ATA_HORKAGE_ZERO_AFTER_TRIM, }, |
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{ "Samsung*SSD*", NULL, ATA_HORKAGE_ZERO_AFTER_TRIM, }, |
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{ "SAMSUNG*SSD*", NULL, ATA_HORKAGE_ZERO_AFTER_TRIM, }, |
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{ "ST[1248][0248]0[FH]*", NULL, ATA_HORKAGE_ZERO_AFTER_TRIM, } |
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|
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> More info: |
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> http://linux.slashdot.org/story/15/06/16/201217/trim-and-linux-tread-cautiously-and-keep-backups-handy |
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> |
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> Also, my samsung 840 is slow (multisect is off and cant be enabled with |
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> hdparm). Tried update the bios but the boot cd crashed on my machine (AMD |
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> chipset related) so i will have to put it in another machine and try |
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> again... |
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> |
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> Samsung EVOs also have a firmware bug that causes them to slow down. |
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|
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I chose long ago not to use queued TRIM (when OCZs were the rage). |
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|
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From a cursory read this sounds like *only* ext4 fs. I have XFS on all my |
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SSDs. Two are Samsung 840 Pro Series, and 850 Pro Series. The 840 I've had |
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over a year and it is golden. The 850 I've had only a couple of months, and |
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due to work requirements it is running Windows atm. Still, there is nothing |
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like what I read in this article happening with either. |
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|
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I also have a Micron C400 RealSSD mSATA 32GB -- no problems with it, either. |
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It's running Funtoo atm with VFAT /boot for UEFI, swap, all other XFS. |