> Can I know how to configure a SSD to be used for L2arc ? Basically I want to > improve read performance.
Read the documentation, specifically the section titled; Creating a ZFS Storage PoolWith Cache Devices > To increase write performance, will SSD for Zil help ? As I read on forums, > Zil is only used for mysql/transaction based writes. I have regular writes > only. That is not correct - the ZIL is used for synchronous writes. From the documentation: The ZFS intent log (ZIL) is provided to satisfy POSIX requirements for synchronous transactions. For example, databases often require their transactions to be on stable storage devices when returning from a system call. NFS and other applications can also use fsync() to ensure data stability. By default, the ZIL is allocated from blocks within the main pool.However, better performance might be possible by using separate intent log devices, such asNVRAMor a dedicated disk. > > Thanks. > > Regards, > Ram > _______________________________________________ > zfs-discuss mailing list > zfs-discuss@opensolaris.org > http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
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