instant initialization - 4 which files?

the sql instant initialization - does it apply to all files in the server?
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25112Asked:
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25112Author Commented:
data, log, index- does it apply all or any?

what about system databases? does instant initialization enabled or apply to them also?
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Scott PletcherSenior DBACommented:
Only non-log (.ldf) files.  Log files must always be initialized before use.
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25112Author Commented:
ok.. thx.

what abt tempdb data file? (master db)
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Scott PletcherSenior DBACommented:
The specific db doesn't change the way SQL works, it's the same for the whole instance.

Thus, non-log files will use IFI if it's enabled and log files will not, regardless of db.
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Microsoft SQL Server 2008

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