Re: [zfs-discuss] Re: ZFS Performance Question

2006-11-03 Thread Torrey McMahon
Jay Grogan wrote: The V120 has 4GB of RAM , on the HDS side we are in a RAID 5 on the LUN and not shairing any ports on the MCdata, but with so much cache we aren't close to taxing the disk. Are you sure? At some point data has to get flushed from the cache to the drives themselves. In most

[zfs-discuss] Re: ZFS Performance Question

2006-11-02 Thread Jay Grogan
The V120 has 4GB of RAM , on the HDS side we are in a RAID 5 on the LUN and not shairing any ports on the MCdata, but with so much cache we aren't close to taxing the disk. You mentioned the 50MB on the throughput and that's something we've been wondering around here as to what the average is

[zfs-discuss] Re: ZFS Performance Question

2006-10-31 Thread Jay Grogan
To answer your question Yes I did expect the same or better performance than standard UFS based on all the hype and to quote Sun Blazing performance ZFS is based on a transactional object model that removes most of the traditional constraints on the order of issuing I/Os, which results in huge

Re: [zfs-discuss] Re: ZFS Performance Question

2006-10-31 Thread Richard Elling - PAE
Jay Grogan wrote: To answer your question Yes I did expect the same or better performance than standard UFS based on all the hype and to quote Sun Blazing performance ZFS is based on a transactional object model that removes most of the traditional constraints on the order of issuing I/Os,

[zfs-discuss] Re: ZFS Performance Question

2006-10-31 Thread Jay Grogan
Thanks Robert, I was hoping something like that hard turned up allot of what I will need to use ZFS for will be sequential writes at this time. This message posted from opensolaris.org ___ zfs-discuss mailing list zfs-discuss@opensolaris.org

Re: [zfs-discuss] Re: ZFS Performance Question

2006-10-31 Thread Chad Leigh -- Shire.Net LLC
On Oct 31, 2006, at 11:09 AM, Jay Grogan wrote: Thanks Robert, I was hoping something like that hard turned up allot of what I will need to use ZFS for will be sequential writes at this time. I don't know what it is worth, but I was using iozone http:// www.iozone.org/ on my ZFS on top

Re: [zfs-discuss] Re: ZFS Performance Question

2006-10-31 Thread Robert Milkowski
Hello Jay, Tuesday, October 31, 2006, 7:09:12 PM, you wrote: JG Thanks Robert, I was hoping something like that hard turned up JG allot of what I will need to use ZFS for will be sequential writes at this time. JG Even then I would try first to test with more real load on ZFS as it can turn

Re: Re[2]: [zfs-discuss] Re: ZFS Performance Question

2006-10-31 Thread Luke Lonergan
Robert, On 10/31/06 3:55 PM, Robert Milkowski [EMAIL PROTECTED] wrote: Right now with S10U3 beta with over 40 disks I can get only about 1.6GB/s peak. That's decent - is that the number reported by zpool iostat? In that case then I think 1GB = 1024^4, my GB measurements are roughly billion