The new tool 'iscsi-md5sum' is used to calculate MD5 value of an iSCSI
target. This help users to verify data at range [LBA, Length).
For example, double-write on a RAID1 of 2 iSCSI targets, a daemon
process runs iscsi-md5sum to check data periodically.
Originally, we have to use several steps to achieve:
1, use iscsiadm to login.(root privilege required)
2, use dd(dd if=/dev/sdX of=/TMPPATH bs=4k count=LENGTH skip=LBA)
to dump data. (root privilege required, additional disk space required)
3, use md5sum to calculate MD5 value
4, remove data.
Instead, a single command iscsi-md5sum without root privilege is enough.
Signed-off-by: zhenwei pi <pizhenwei@bytedance.com>
The new tool 'iscsi-discard' is used to excute unmap or write zeros
on an ISCSI target. The parameters look like the command 'blkdiscard'
(from util-linux).
Signed-off-by: zhenwei pi <pizhenwei@bytedance.com>
iscsi-pr uses libiscsi to connect target and issues PR command.
In most cases, iscsi-pr use the same parameters as sg_persist(from sg3-utils).
For example, use iscsi-pr to dump keys by command:
~# ./utils/iscsi-pr --read-keys iscsi://192.168.122.44/iqn.2003-01.org.linux-iscsi.bytedance.x8664:sn.a6b7bff3d509/0 -i iqn.2005-03.org.open-iscsi:12345678
PR generation=0x20, 19 registered reservation keys follow:
0xabcd1234
0xabcd
0xabcd
0xabc
A few command is not implemented in this patch, add them if necessary
in future.
Signed-off-by: zhenwei pi <pizhenwei@bytedance.com>
Instead of adding __attribute__((unused)) to unused arguments, add the
-Wno-unused-parameter compiler flag.
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Instead of defining the macro _R_(), define __attribute__() as a macro for
compilers that do not support __attribute__(), namely Microsoft Visual
Studio.
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
This commit includes all iSER implementation in libscsi
library and utilities.
Also, adding iser option in url.
Change-Id: I55ca8a9d4db802e72eb991061260dbb0bd0ef9ba
Signed-off-by: Roy Shterman <roysh@mellanox.com>
