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Aram Hăvărneanu
Asked: 2009-10-13 00:44:00 +0800 CST

NTFS journal on different (SSD) disk

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Some advanced file systems, like ZFS have the option of using SSD disks as a second level cache for the file system or for the journal.

Is this possible with NTFS?

performance

2 Answers

  1. Unfortunately not. The only filesystems I'm aware of that can do this are WAFL (The NetApp file system) and ZFS from Sun (Which borrows a lot of concepts from WAFL)
    I wouldn't be surprised if other modern filesystems such as NILFS also used SSD for write journals, but I can't say I've seen anything written up to suggest that this is the case.

    Suggested reading:
    ZFS data integrity tested
    How Microsoft puts your data at risk

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  2. I read through the linked blog post. It sounds similar to what MS have done in Vista/7 with ReadyBoost.

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