From dd34ac08592be4eb2f5b1d76dd16366f63d168e8 Mon Sep 17 00:00:00 2001 From: mav Date: Wed, 30 Jul 2014 07:18:32 +0000 Subject: MFC r268767: Add support for VMWare dialect of EXTENDED COPY command, aka VAAI Clone. This allows to clone VMs and move them between LUNs inside one storage host without generating extra network traffic to the initiator and back, and without being limited by network bandwidth. LUNs participating in copy operation should have UNIQUE NAA or EUI IDs set. For LUNs without these IDs VMWare will use traditional copy operations. Beware: the above LUN IDs explicitly set to values non-unique from the VM cluster point of view may cause data corruption if wrong LUN is addressed! Sponsored by: iXsystems, Inc. --- usr.sbin/ctladm/ctladm.8 | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'usr.sbin') diff --git a/usr.sbin/ctladm/ctladm.8 b/usr.sbin/ctladm/ctladm.8 index fc050eb..ae1b20c 100644 --- a/usr.sbin/ctladm/ctladm.8 +++ b/usr.sbin/ctladm/ctladm.8 @@ -951,6 +951,14 @@ Specifies LUN SCSI name string. Specifies LUN EUI-64 identifier. .It Va naa Specifies LUN NAA identifier. +Either EUI or NAA identifier should be set to UNIQUE value to allow +EXTENDED COPY command access the LUN. +Non-unique LUN identifiers may lead to data corruption. +.It Va insecure_tpc +Setting to "on" allows EXTENDED COPY command sent to this LUN access +other LUNs on this host, not accessible otherwise. +This allows to offload copying between different iSCSI targets residing +on the same host in trusted environments. .It Va unmap Set to "on", enables UNMAP support for the LUN. .El -- cgit v1.1