Zil and L2ARC ssd report 512k sector size, but are not

[Audio-Catalyst]

Guys,

got maybe a silly question.

a friend have 3 ssd's installed, 1 zil 2 l2ARC
they do support the advance sector sizes, however they are reported as 512k.
How and should i proceed ?

Thinking out loud , guessing it does affect performance ?


root@PSD01:/volumes# echo ::sd_state |mdb -k | grep phy_blocksize
un_phy_blocksize = 0x200
un_phy_blocksize = 0x1000
un_phy_blocksize = 0x1000
un_phy_blocksize = 0x1000
un_phy_blocksize = 0x1000
un_phy_blocksize = 0x200
un_phy_blocksize = 0x200
un_phy_blocksize = 0x200
un_phy_blocksize = 0x200
root@PSD01:/volumes# echo "::walk sd_state | ::grep '.!=0' | :rint struct sd_lun un_sd | :rint struct scsi_device sd_inq | :rint struct scsi_inquiry inq_vid inq_pid" | mdb -k
inq_vid = [ "ATA " ]
inq_pid = [ "WDC WD3200BEVT-1" ]
inq_vid = [ "ATA " ]
inq_pid = [ "ST2000DM001-9YN1" ]
inq_vid = [ "ATA " ]
inq_pid = [ "ST2000DM001-9YN1" ]
inq_vid = [ "ATA " ]
inq_pid = [ "ST2000DM001-9YN1" ]
inq_vid = [ "ATA " ]
inq_pid = [ "ST2000DM001-9YN1" ]
inq_vid = [ "ATA " ]
inq_pid = [ "Samsung SSD 840 " ]
inq_vid = [ "ATA " ]
inq_pid = [ "SAMSUNG SSD 830 " ]
inq_vid = [ "ATA " ]
inq_pid = [ "TOSHIBA MK3256GS" ]
inq_vid = [ "ATA " ]
inq_pid = [ "Samsung SSD 840 " ]

all hooked up to a IT Flashed 9211-8i , except the TOSHIBA MK3256GS, and the WDC WD3200BEVT-1, but they are the system disk, and don't support 4k alignment

any tips or thoughts?

 

[patrickdk]

Depends on how much you care. The dram on it buffers the writes till it goes into it's assigned location.

The chips on these, page size of 8k, and block size of 1mb.

So you have to erase 1mb at a time, and write 8k at a time. Atleast for the samsung 840