In a recent note, Ron and Jenny Hawkins said: > Date: Sun, 19 Feb 2006 13:52:32 +0800 > > The main difference between Instant Split and COW is that the Source data > will always be copied to the target location eventually, whereas with Copy > On Write only updated data is moved to the update pool or target volume. > It appears, then, that the particular value of Instant Split lies where the target can be directed to a separate (physical) volume, or even a remote one, to protect against physical catastrophes as well as inadvertent harmful updates.
This would seem almost equivalent to CoW followed by a regular copy, except for some performance advantage to Instant Split in environments with significant update activity. -- gil -- StorageTek INFORMATION made POWERFUL ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
