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| author | Douglas Gilbert <dgilbert@interlog.com> | 2019-04-11 00:23:23 +0000 |
|---|---|---|
| committer | Douglas Gilbert <dgilbert@interlog.com> | 2019-04-11 00:23:23 +0000 |
| commit | cc730c8de77b8f35d924cb4a01437f7166d85e12 (patch) | |
| tree | 8059ed69638442a4ba2df26baf65044d78448c3b /README | |
| parent | 3905f5ce447048fdc0fe1f9573cab87df97972bb (diff) | |
| download | sg3_utils-cc730c8de77b8f35d924cb4a01437f7166d85e12.tar.gz | |
sg_modes+sg_logs: placeholders for Commmand duration limits pages (sbc4r17 for spc6r?)
git-svn-id: https://svn.bingwo.ca/repos/sg3_utils/trunk@817 6180dd3e-e324-4e3e-922d-17de1ae2f315
Diffstat (limited to 'README')
| -rw-r--r-- | README | 26 |
1 files changed, 24 insertions, 2 deletions
@@ -203,7 +203,7 @@ and disable the creation of the shared library (libsgutils<num>.so) this invocation could be used: "./configure --prefix=/usr --disable-shared". To reduce the size of an executable as well try this: "./configure --prefix=/usr --disable-shared --disable-scsistrings". -Also --disable-shared will produce (realtively) "static" executables in +Also --disable-shared will produce (relatively) "static" executables in the src directory that are easier to debug. And "./configure --enable-debug" will compile with more debug type options, including more compiler checks and defining "DEBUG" within the src and @@ -399,6 +399,28 @@ queue limit of 16). Multiple threads doing the same thing act as a multiplier to that queue limit. +NVME Support +============ +Firstly the author has no intention of extending this package to contain +general purpose NVMe utilities. That leaves the areas where SCSI overlaps +with NVMe. There was a SCSI to NVMe Translation Layer (SNTL) driver in the +Linux kernel based on a white paper from NVM Express. Intel has withdrawn +that driver and T10 (SCSI) and NVM Express have made no further attempts +to standardize a SNTL. Given the SCSI to ATA Translation Layer (SATL) which +is standardized by T10, it is pretty clear what a SNTL should do. + +The NVMe Management Interface (NVME-MI) committee have decided to use SES-3 +standard from T10 via the newly added SES Send and SES Receive MI commands. +So the sg_ses utility and this package's library have been extended to use +these commands when a NVMe device (typically a disk enclosure) is detected. +This has been tested by a disk vendor who is happy with the results. Other +user reports are welcome as the author does not have equipment to test +this. + +Other utilities in this package that use the SES Send and Receive commands, +or the SNTL in the library are sg_senddiag, sg_inq and sg_readcap. + + Command line processing ======================= These utilities can be divided into 3 groups when their handling of command @@ -519,4 +541,4 @@ See http://sg.danny.cz/sg/tools.html Douglas Gilbert -28th June 2018 +10th April 2019 |