U3 is under consideration, we're going through some rudimentary testing of the update.
I ran the following commands gtar cf <file in a new ZFS pool with compression>, I was just creating a tar file The remote copying was done as follows: scp -c arcfour . [EMAIL PROTECTED]:/<UFS filesystem> BTW, the reverse operation of repopulating my FS (by untarring the local tar file) was extremely slow. Me thinks it was 2x slower, I averaged 5MB/S. Let me run some more experiments before I conclusively say the problems are related to compression. Initial observations suggest that it is for the following reasons: I ran 4 parallel gtar sessions reading from 4 ZFS filesystems with compresson writing to a new ZFS filesystem with compression on. My aggregate I/O never changed whether I ran 1 stream or 4 streams, it never exceeded around 20MB/S. My I/O sub-system was idling most of them time, sub 10ms write response time per 'iostat'. If compression was not the issue what else can I explain the magical 20MB/S ceiling no matter how many write streams I had going? This message posted from opensolaris.org _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
