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...some workloads in *filebench* to perform some file operations in a nfs mounted folder. I use the ratio of time spent on sd_get()+tsd_get() to the time spent on the whole operation to evaluate the overhead. The workload I selected are: randomrw, filemicro_rwrite, filemicro_rread, randomread, randomwrite. Summary of the result: 1. for every operation, most of the distribution of ratio is less than 1%. 2. for every operation, the average of the ratio is less than 1%. 3. the time spent on tsd_get() and tsd_set() are very similar. so the ratio mostly depends on the time spend on operation. 4. I...

Hi all, i want to replace a bunch of Apple Xserves with Xraids and HFS+ (brr) by Sun x4200 with SAS-Jbods and ZFS. The application will be the Helios UB+ fileserver suite. I installed the latest Solaris 10 on a x4200 with 8gig of ram and two Sun SAS controllers, attached two sas-jbods with 8 SATA-HDDs each und created a zfs pool as a raid 10 by doing something like the following: [i]zpool create