On Fri, 2014-02-07 at 15:44 -0500, Martin K. Petersen wrote: > >>>>> "Kurt" == Kurt Miller <kurt@xxxxxxxxxxxxxxxxxxxxx> writes: > > Kurt> Is TRIM working for anyone using LSI SAS2008 controllers? > > Yes. But its SAT appears to be somewhat selective about which devices it > flags as capable. > > Please send me the output of: > > # sg_readcap -l /dev/sdc > # sg_vpd -p bl /dev/sdc > # sg_vpd -p lbpv /dev/sdc > Hi Martin, Thank you for your reply. Below is the output you requested. Note that when the EVO's are connected to a SATA AHCI port on my desktop motherboard, TRIM works okay. Please let me know if you need additional information. Regards, -Kurt # sg_readcap -l /dev/sdc Read Capacity results: Protection: prot_en=0, p_type=0, p_i_exponent=0 Logical block provisioning: lbpme=0, lbprz=0 Last logical block address=976773167 (0x3a38602f), Number of logical blocks=976773168 Logical block length=512 bytes Logical blocks per physical block exponent=0 Lowest aligned logical block address=0 Hence: Device size: 500107862016 bytes, 476940.0 MiB, 500.11 GB # sg_vpd -p bl /dev/sdc Block limits VPD page (SBC): Write same no zero (WSNZ): 0 Maximum compare and write length: 0 blocks Optimal transfer length granularity: 0 blocks Maximum transfer length: 0 blocks Optimal transfer length: 0 blocks Maximum prefetch length: 0 blocks Maximum unmap LBA count: 0 Maximum unmap block descriptor count: 0 Optimal unmap granularity: 0 Unmap granularity alignment valid: 0 Unmap granularity alignment: 0 Maximum write same length: 0x0 blocks # sg_vpd -p lbpv /dev/sdc Logical block provisioning VPD page (SBC): Unmap command supported (LBPU): 0 Write same (16) with unmap bit supported (LBWS): 0 Write same (10) with unmap bit supported (LBWS10): 0 Logical block provisioning read zeros (LBPRZ): 0 Anchored LBAs supported (ANC_SUP): 0 Threshold exponent: 0 Descriptor present (DP): 0 Provisioning type: 0 -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
