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nginx/1.28.0

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Linux 6.8.0-90-generic

PHP Version:

8.4.15

User:

alqudsvolunteers

Directory:

/home/alqudsvolunteers/rootlink/proc/self/root/proc/self/root/usr/share/doc/sg3-utils/examples

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✏️ Editing: sg_unmap_example.txt

#                sg_unmap_example.txt
# This is an example of the contents of a file that can be given to sg_unmap
# For example, assume the /dev/sdc is a scratch disk (e.g. one made by the
# scsi_debug kernel module) then:
#    sg_unmap --in=sg_unmap_example.txt /dev/sdc

0x12345677,1	# unmap LBA 0x12345677
0x12345678 2	# unmap LBA 0x12345678 and 0x12345679
0x12340000 3333	# unmap 3333 blocks starting at LBA 0x12340000

0X5a5a5a5a5a	0  # unmaps 0 blocks (i.e. does nothing)

a5a5a5h
7		# unmap 7 blocks starting at LBA 0xa5a5a5

# Note that there can be leading and trailing whitespace and whitespace
# (plus comma) can be a separator.
#
# Example invocation:
# $ sg_unmap --in=../examples/sg_unmap_example.txt -vv /dev/sdc
# open /dev/sg2 with flags=0x802
#     unmap cdb: 42 00 00 00 00 00 00 00 58 00
#     unmap parameter list:
#         00 56 00 50 00 00 00 00  00 00 00 00 12 34 56 77
#         00 00 00 01 00 00 00 00  00 00 00 00 12 34 56 78
#         00 00 00 02 00 00 00 00  00 00 00 00 12 34 00 00
#         00 00 0d 05 00 00 00 00  00 00 00 5a 5a 5a 5a 5a
#         00 00 00 00 00 00 00 00  00 00 00 00 00 a5 a5 a5
#         00 00 00 07 00 00 00 00
# sg_cmds_process_resp: slen=18
# unmap:  Fixed format, current;  Sense key: Illegal Request
#  Additional sense: Invalid command operation code
#  Raw sense data (in hex):
#         70 00 05 00 00 00 00 0a  00 00 00 00 20 00 00 00
#         00 00
# UNMAP not supported
#
# --------------------------------------------------------
# Notice the 8 byte header then 5 descriptors in the parameter
# list

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