Edit: /usr/bin/sg_unmap (23304B)
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ȉHD$HHL$xL 1L$ L$ H5Z L$ vAWL t$PLL$P/؉H= H15Er&pH= 1H= 1A )Ht$H= 1A H= 1A L1AQD$ A 1P@D$xAZA[H= 1A H|$( FH=7 1pA|$0 H HDD$H5b H= H1A Ht$@H=x 1A #H=X LaH=g 1LH+t$(H= 1HALH+t$0H= 1H=\ 1A LH+t$0H= 1n̍pH=z 1[빅 H= 1CDt$hH=B 1+A LV\$ A 11SD$x_AXu?H=N L x*H=^ 1Dt$h؉OD$hU؉=D$hH= 1H=m 1vHT$H5u H=: 1WPH=c 1D)EDAYALT$ H51 1H= f. 1I^HHPTE11H=6 f. H= 9 H9 H9tH6 Ht H=8 H58 H)HH?HHHtH6 Htf D =8 u+UH=6 Ht H=6 dm8 ] w ff> HH=] 1H= 1H HH Usage: sg_unmap [--all=ST,RN[,LA]] [--anchor] [--dry-run] [--force]
[--grpnum=GN] [--help] [--in=FILE] [--lba=LBA,LBA...]
[--num=NUM,NUM...] [--timeout=TO] [--verbose] [--version]
DEVICE
where:
--all=ST,RN[,LA]|-A ST,RN[,LA] start unmaps at LBA ST, RN blocks
per unmap until the end of disk, or until
and including LBA LA (last)
--anchor|-a set anchor field in cdb
--dry-run|-d prepare but skip UNMAP call(s)
--force|-f don't ask for confirmation before zapping media
--grpnum=GN|-g GN GN is group number field (def: 0)
--help|-h print out usage message
--in=FILE|-I FILE read LBA, NUM pairs from FILE (if FILE is '-'
then stdin is read)
--lba=LBA,LBA...|-l LBA,LBA... LBA is the logical block address
to start NUM unmaps
--num=NUM,NUM...|-n NUM,NUM... NUM is number of logical blocks to
unmap starting at corresponding LBA
--timeout=TO|-t TO command timeout (unit: seconds) (def: 60)
--verbose|-v increase verbosity
--version|-V print version string and exit
Perform a SCSI UNMAP command. LBA, NUM and the values in FILE are assumed
to be decimal. Use '0x' prefix or 'h' suffix for hex values.
Example to unmap LBA 0x12345:
sg_unmap --lba=0x12345 --num=1 /dev/sdb
Example to unmap starting at LBA 0x12345, 256 blocks per command:
sg_unmap --all=0x12345,256 /dev/sg2
until the end if /dev/sg2 (assumed to be a storage device)
WARNING: This utility will destroy data on DEVICE in the given range(s)
that will be unmapped. Unmap is also known as 'trim' and is irreversible.
--all=ST,RN[,LA] expects at least one comma in argument, found none
unable to decode --all=ST,.... (starting LBA)
unable to decode --all=ST,RN.... (repeat number)
warning: --all=ST,RN... being ignored because RN is 0
unable to decode --all=ST,NR,LA (last LBA)
value for '--grpnum=' must be 0 to 63
unrecognised option code 0x%x ??
Unexpected extra argument: %s
Not in DEBUG mode, so '-vV' has no special action
Can't have --all= together with --lba=, --num= or --in=
expect '--in=' by itself, or both '--lba=' and '--num='
since '--lba=' is given, also need '--num='
expect either both '--lba=' and '--num=', or '--in=', or '--all='
in --all=ST,RN,LA start address (ST) exceeds last address (LA)
'--lba' cannot be read from stdin
0123456789aAbBcCdDeEfFhHxXiIkKmMgGtTpP, build_lba_arr: error at pos %d
'--len' cannot be read from stdin
build_num_arr: error at pos %d
build_num_arr: number exceeds 32 bits at pos %d
need same number of arguments to '--lba=' and '--num=' options
0123456789aAbBcCdDeEfFhHxXiIkKmMgGtTpP , %s: syntax error at line %d, pos %d
%s: number exceeds 32 bits in line %d, at pos %d
%s: error on line %d, at pos %d
%s: expect LBA,NUM pairs but decoded odd number
from %s
no addresses found in '--in=' argument, file: %s
Read capacity(16) unit attention, try again
Read capacity(16) not supported, try Read capacity(10)
after READ CAPACITY the last block (0x%lx) less than start address (0x%lx)
An UNMAP (a.k.a. trim) will commence in 15 seconds ALL data from %s will be LOST
Press control-C to abort
An UNMAP will commence in 10 seconds
An UNMAP (a.k.a. trim) will commence in 5 seconds Doing dry-run, would have unmapped from LBA 0x%lx to 0x%lx
%u blocks per UNMAP command
Typical end of disk out-of-range, decrement count and retry
Doing dry-run so here is 'LBA, number_of_blocks' list of candidates
UNMAP failed, device not ready
Some error occurred, try again with '-v' or '-vv' for more information
LBA 0x%lx to end of %s (0x%lx) build_num_arr: array length exceeded
build_lba_arr: array length exceeded
stdin aA:dfg:hI:Hl:n:t:vV %d bad argument to '--timeout'
1.17 20180628 version: %s
missing device name!
bad argument to '--lba'
bad argument to '--num'
%s: unable to open %s
%s: array length exceeded
, bad argument to '--in'
open error: %s: %s
Read capacity(16) response:
Read capacity(10) response:
Read capacity(10) failed
Read capacity(16) failed
Completed %d UNMAP commands
0x%lx, 0x%u
%s is: %.8s %.16s %.4s
Some data will be LOST UNMAP, unit attention
UNMAP, aborted command
UNMAP not supported
bad field in UNMAP cdb
sg_unmap failed: close error: %s
LBA 0x%lx to 0x%lx on %s all anchor dry-run dry_run force grpnum help lba timeout verbose version XzpXsdsc; build_joint_arr ;D `x 0 @ ` zR x x& D $ 4 FJ w ?:*3$" \ t $ D[ FBB B(A0A8G L%
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