Okcan Yasin Saygili's Blog

December 25, 2009

LOCAL VS REMOTE Snapshot

Filed under: database — yasinsaygili @ 8:22 pm

i decided ,snapshot is too high system , If the conpany have big data on database so sonetimes DBA should immediate backup for database ,that time we thinking what will i happen? or what will i take? thats questions are true so we sould make this method.This method divided 2 parts

1.SNAPSHOT

1.a.REMOTE SNAPSHOT

1.b.LOCAL SNAPSHOT

1.a.a.SNAPSHOT MIRROR

1.a.b.COPY-ON-WRITE SNAPSHOT

1.b.a.SNAPSHOT MIRROR

1.b.b.COPY-ON-WRITE SNAPSHOT

Actually we thaught about this situation remote system is make foe disaster situation so DBA can control with outside by the way data is secure with this system.Dublicate image can become  at remote side.

Another side local side,local snapshot have data at local side,so you can connect with internal .Another important thing for side ,it is twice host for this situation ,some system use two host.

we will enter deeply but this is only begining

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