- Sun Storage Virtual Tape Library VTL User Guide

Replication
206 VTL User Guide • May 2008 G • 96267
‐w(‐‐watermark)isadatasizebasedtriggerinMB .Thewatermarkischec ke dwhen
thetapeis unloadedfromthetapedriveandthereplicationistriggered ifthe
amountofnewdataon thetapehasreachedthespecifie d watermark.
‐d(‐‐date)combinedwith ‐i(‐‐
interval)isatimebasedtrigger. Th ereplicationis
triggeredatthetimespecifiedbydateandthen repeatedeveryinterval.‐d(‐‐date)
formatisYYYYMMDDHHM Mand‐i(‐‐interval)formatisanumberfollowedbyH
forhoursorM forminutes(e.g.‐i2Hor‐‐interval=120M).
Todelete
awatermarktriggerspecify0forthewatermark.Todeleteatimebased
triggerspecifyNAfordate.Atleas tonetriggermustremainactive.
Thedateargumentisnotrequiredifyouar eonlychangingtheinterval.
Forvirtualtapeshavingthetapecachingpropertyenabled,replicationistriggered
basedon
thetapecachingpolicy:
‐r(‐‐repl‐first)isrequiredto replicatethevirtualtapebeforeitis migrated.Us eʺonʺ
inordertoenablethispolicyorʺoffʺtohavetapemigrationexecutedfirst.
Thereplicationretrypolicycanbe changed usingthefollowingoptions:
■ ‐t(‐‐replication‐timeout)inseconds(default60).
■ ‐I(‐‐re pl ica tio n‐retry‐interval)inseconds(default60).
■ ‐C(‐‐replication‐retry‐count)retrycoun t (default1).
‐c(‐‐compression)isanoption toenableordisablecompressionwithoneofthe
values:onoroff.
‐e(‐‐encryption)isanoptionforremotereplicationonlytosettheencryptionwith
oneofthevalues: on oroff
.
‐X(‐‐rpc‐timeout)isanoptiontospecifyanumberbetween1and30000inseconds
fortheRPCtimeout.Thesystemwillretrythecommandfortheamountof time
specifiediftheserverdoesnotrespond.ThedefaultRPCtime outis30seconds.
Getreplicationproperties
iscon getreplicationproperties -s <server-name> [-u <username> -p <password>]
-v <source-vdevid> [-X <rpc-timeout>]
iscon getreplicationproperties --server-name=<server-name>
[--server-username=<username> --server-password=<password>]
--source-vdevid=<source-vdevid> [--rpc-timeout=<rpc-timeout>]
Description:
Thiscomma n d allowsyoutoge tthereplicationpropertiesfor a  virtualdevice
configuredforreplication.