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suri(7)

Standards, Environments, Macros, Character Sets, and miscellany
                                                                       suri(7)



NAME
       suri - storage URIs

DESCRIPTION
       Storage URIs uniquely identify storage objects across different nodes.

   Whole Disk Concept
       Aside from the dev URI which may reference individual slices, all other
       URI types always represent an entire disk. Such disk is represented  as
       a  device  path  without  a  slice,  for  example,  /dev/dsk/c0t0d0  or
       /dev/dsk/c0t5000c5000288fa25d0. Such a device path without a slice  may
       not  exist for all disks on the system and the consumer of storage URIs
       must be prepared for that. Note  that  zpool(8)  always  accept  cXtXdX
       device   paths   for  existing  block  devices  even  for  non-existent
       /dev/dsk/cXtXdX links.

   Creating Storage Objects
       All storage URI types do not  support  creating  storage  objects.  See
       below,  for  each  type description. For URI types that support storage
       object creation, use suriadm create subcommand with the -p  create-size
       option. Storage objects can be created manually as well. It is not sup‐
       ported for storage objects to  get  created  as  part  of  the  mapping
       process.


       The following Storage URIs are supported.

   Device URI
         dev:<local-path-under-/dev>
         dev://<absolute-path-to-device>
         dev:<absolute-path-to-device>



       Examples:

         dev:dsk/c0t0d0s0
         dev:///dev/dsk/c0t0d0s0
         dev:/dev/dsk/c0t0d0s0
         dev:chassis/SYS/HD1/disk



       The  device  URI specifies an object in the form of an existing device.
       All forms of the dev URI are functionally equivalent. The dev:dsk  for‐
       mat  with no authority section and an implied /dev/ path prefix is usu‐
       ally preferred. The path must always identify a device within the  /dev
       name space.


       Components  of  the  device  path  may only include characters from the
       POSIX.1-2008 Portable Filename Character Set, 0-9a-zA-Z._-.


       The dev URI type does not support the create operation.

   Logical Unit URI
         lu:luname.naa.<ID>
         lu:luname.eui.<ID>
         lu:initiator.naa.<ID>,target.naa.<ID>,luname.naa.<ID>
         lu:initiator.naa.<ID>,target.naa.<ID>,luname.eui.<ID>




       Examples:

         lu:luname.naa.5000c5000288fa25
         lu:luname.eui.0021280001cf80f6
         lu:initiator.naa.2100001d38089fb0,target.naa.2100001d38089fb0,luname.naa.5000c5000288fa25
         lu:initiator.naa.2100001d38089fb0,target.naa.2100001d38089fb0,luname.eui.0021280001cf80f6



       Logical unit URI specifies a logical unit attached via Fibre Channel or
       serial-attached  SCSI.  In the luname-only URI form, the ID describes a
       logical unit name. In the initiator, target, luname form, an  initiator
       specifies  an  initiator port and a target specifies a target port, and
       together they specify a path to the logical unit whose name must  match
       the URI's luname part as in the luname-only form.


       IDs  are  represented  by using the SCSI-3 VPD page (0x83) logical unit
       names formatted as hexadecimal numbers  (64/128  bits).  IDs  are  case
       insensitive. Only logical unit names based on NAA or EUI-64 identifiers
       are supported. See NOTES for information on identifier formats.


       In general it is recommended using  multipathing  in  conjunction  with
       luname-only  URIs. If multipathing is disabled and a luname-only URI is
       used, a random path to the specified logical unit will  be  chosen.  To
       avoid this random path assignment an initiator, target, luname URI form
       can be used to select a specific path to  a  logical  unit.  If  multi‐
       pathing  is  enabled  and an initiator, target, luname URI form is used
       then the multipathing framework controls which paths are used to access
       the logical unit and the URI is only used to identify the unit, not the
       access path.


       If an initiator or/and a target IDs are not  matched  but  the  logical
       unit  is  found based on a logical unit name, the unit will be accessed
       via an alternate path.


       The lu URI type does not support the create operation.

   iSCSI URI
         iscsi:///luname.naa.<ID>
         iscsi:///luname.eui.<ID>
         iscsi://<host>[:<port>]/luname.naa.<ID>
         iscsi://<host>[:<port>]/luname.eui.<ID>
         iscsi:///target.<IQN>,lun.<LUN>
         iscsi:///target.eui.<ID>,lun.<LUN>
         iscsi://<host>[:<port>]/target.<IQN>,lun.<LUN>
         iscsi://<host>[:<port>]/target.eui.<ID>,lun.<LUN>



       IQN stands for iSCSI Qualified  Name,  which  has  the  form  iqn.YYYY-
       MM.<org-naming-auth>[:<string-defined-by-org>].  IQN  format is defined
       and elaborated with examples in RFC 3721  on  Internet  Small  Computer
       Systems  Interface (iSCSI) Naming and Discovery. It is recommended that
       <string-defined-by-org> be a Universally Unique Identifier (UUID).


       The use of the target,lun form of the iSCSI URI will only be  transfer‐
       able  between  hosts if the mapping from the initiator, target, and LUN
       to the logical unit name is configured to be independent of the initia‐
       tor.


       Examples:


         iscsi:///luname.eui.0021280001cf80f6
         iscsi:///luname.naa.600144f03d70c80000004ea57da10001
         iscsi://[::1]/luname.naa.600144f03d70c80000004ea57da10001
         iscsi://127.0.0.1/luname.naa.600144f03d70c80000004ea57da10001
         iscsi://127.0.0.1:3260/luname.naa.600144f03d70c80000004ea57da10001
         iscsi://hostname:3260/luname.eui.0021280001cf80f6
         iscsi://hostname:3260/luname.naa.600144f03d70c80000004ea57da10001
         iscsi://127.0.0.1/target.iqn.com.sun:02:d0f2d311-f703,lun.0
         iscsi://127.0.0.1/target.eui.bbbbbbbbbbff0011,lun.0
         iscsi://127.0.0.1:3260/target.iqn.com.sun:02:d0f2d311-f703,lun.3
         iscsi://127.0.0.1:3260/target.eui.bbbbbbbbbbff0011,lun.3
         iscsi:///target.iqn.com.sun:02:d0f2d311-f703,lun.6
         iscsi:///target.eui.bbbbbbbbbbff0011,lun.6
         iscsi://[::1]/target.iqn.com.sun:02:d0f2d311-f703,lun.2
         iscsi://[::1]/target.eui.bbbbbbbbbbff0011,lun.2
         iscsi://hostname:3260/target.iqn.com.sun:4db41b76-e3d7-cd2f-bf2d-9abef784d76c,lun.0
         iscsi://hostname:3260/target.eui.bbbbbbbbbbff0011,lun.0



       The iSCSI URI specifies an object based on a logical unit number acces‐
       sible via iSCSI protocol. Optional hostname[:<port>] authority  section
       provides  information for a consumer to set up a send-targets discovery
       address. IPv6 addresses must be enclosed in square brackets.


       Format of an ID is explained in the Logical Unit URI section. See NOTES
       for information on NAA and EUI-64 based identifier formats.


       The iscsi URI type does not support the create operation.

   NFS URI
         nfs://<user>:<group>@<host>[:<port>]/<nfs-share-path>/<file>



       Examples:

         nfs://admin:staff@host/export/test/nfs_file
         nfs://admin:staff@host:1000/export/test/nfs_file



       The  NFS URI specifies an object based on a labeled lofi device created
       on the given NFS file. The NFS file will be accessed  with  credentials
       derived  from  user and group. User and group can be given as usernames
       or userids. The host can be given as an IPv4 address, IPv6 address,  or
       as a hostname. IPv6 addresses must be enclosed in square brackets.


       Components  of  the NFS share path may only include characters from the
       POSIX.1-2008 Portable Filename Character Set, 0-9a-zA-Z._-.


       The nfs URI type supports the create operation.

   File URI
         file://<user>:<group>@<host>/<file-path>



       Examples:

         file://admin:staff@/filepath
         file://admin:staff@localhost/filepath



       The file URI specifies an object based on a labeled lofi device created
       on  the  given  local  file. The file will be accessed with credentials
       derived from user and group. User and group can be given  as  usernames
       or  userids. The host does not need to be specified, but must be local‐
       host when given.


       Components of the file  path  may  only  include  characters  from  the
       POSIX.1-2008 Portable Filename Character Set, 0-9a-zA-Z._-.


       The file URI type supports the create operation, and may also be mapped
       to a removable/read-only device.

   Getting URIs
       To avoid errors by generating URIs manually, the suriadm(8)  subcommand
       lookup-uri is recommended to be used to generate URIs based on existing
       system device paths, logical unit names, or other information. For more
       information,  see  the suriadm(8) man page. Such information is identi‐
       fied  beforehand  through  other  means.  For  Fibre  Channel  devices,
       fcadm(8)  can be used. For Serial Attached SCSI devices, sasinfo(8) can
       be used. For iSCSI devices, iscsiadm(8) can be used.

ATTRIBUTES
       See attributes(7) for descriptions of the following attributes:


       tab() box; lw(2.75i) |lw(2.75i) lw(2.75i) |lw(2.75i) ATTRIBUTE  TYPEAT‐
       TRIBUTE  VALUE  _  Availabilitysystem/library/storage/suri  _ Interface
       StabilityCommitted


SEE ALSO
       attributes(7), fcadm(8), iscsiadm(8), lofi(4D), sasinfo(8), suriadm(8),
       zpool(8)


       Small Computer System Interface-3 (SCSI-3)


       RFC 3986 - Uniform Resource Identifier (URI): Generic Syntax

NOTES
       NAA stands for Name Address Authority and it is a field within an iden‐
       tifier that specifies the format and length  of  that  identifier.  NAA
       identifier  format  is  defined in SCSI Primary Commands - 3 specifica‐
       tion, section 7.6.3.6 NAA identifier  format.  WWN  (World  Wide  Name)
       identifiers  use  an  NAA  identifier  format. EUI-64 stands for 64-bit
       extended unique identifier and its format is defined by IEEE.



Oracle Solaris 11.4               11 May 2021                          suri(7)
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