Guy Smiley - Slashdot User

Comment Re:What is Lustre File System (Score 1) 68

by Guy Smiley on Monday January 17, 2011 @12:44AM (#34901880) Attached to: Lustre File System Getting New Community Distro

Actually, I'm 100% certain Lustre is NOT using ZFS today. It is actually using ldiskfs for the backing filesystem, which is a modified version of ext4. While work was ongoing to port Lustre over to ZFS, this was not completed.

Comment Re:Benchmarking ZFS on a single disk is misleading (Score 1) 235

by Guy Smiley on Thursday November 25, 2010 @04:57AM (#34340890) Attached to: Running ZFS Natively On Linux Slower Than Btrfs

Any chance you could run the same tests on this hardware under Linux with ext4 and XFS on software MD RAID? An added bonus would be to compare the Solaris ZFS performance with the Linux ZFS performance.

Comment Benchmarking ZFS on a single disk is misleading (Score 1) 235

by Guy Smiley on Monday November 22, 2010 @02:25PM (#34308466) Attached to: Running ZFS Natively On Linux Slower Than Btrfs

Since ZFS is doing metadata replication, running the tests on a single disk is going to punish ZFS performance much more than other filesystems. It would be much more interesting to run a benchmark with an array of 6 or 8 disks with RAID-Z2, with ZFS managing the disks directly, and XFS/btrfs/ext4 running on MD RAID-6 + LVM. Next, run a test that creates a snapshot in the middle of running some long benchmark and see what the performance difference is before/after.

Electric Company Wants Monthly Fee For Solar Users 367

Posted by Soulskill on Saturday August 01, 2009 @10:21AM from the also-working-on-a-candle-penalty dept.

7-Vodka writes "Xcel Energy customers who have their own solar panels are worried about a new fee being proposed by the company. A monthly fee to pay for transmission and distribution of energy would be charged to customers who have solar panels, irrespective of their energy use for the month. An Xcel Energy spokesman said the fee is to ensure that regular customers don't subsidize the 'connectivity fees' for the solar panel customers who don't pay when they generate as much as they use. When pressed, the spokesman admitted that nobody actually pays a 'connectivity fee,' yet they wanted to prevent the mooching from occurring in the future (presumably when they hit everyone with such a fee). He also called the absence of a connectivity fee for solar customers a 'double subsidy' because many solar customers receive rebates to install the panels."

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