Re: [zfs-discuss] What is your data error rate?

2012-01-25 Thread Paul Kraus
On Tue, Jan 24, 2012 at 10:50 AM, Stefan Ring wrote: > After having read this mailing list for a little while, I get the > impression that there are at least some people who regularly > experience on-disk corruption that ZFS should be able to report and > handle. I’ve been running a raidz1 on thr

Re: [zfs-discuss] What is your data error rate?

2012-01-25 Thread Bob Friesenhahn
On Wed, 25 Jan 2012, Anonymous Remailer (austria) wrote: I've been watching the heat control issue carefully since I had to take a job offshore (cough reverse H1B cough) in a place without adequate AC and I was able to get them to ship my servers and some other gear. Then I read Intel is guaran

Re: [zfs-discuss] What is your data error rate?

2012-01-25 Thread John Martin
On 01/25/12 09:08, Edward Ned Harvey wrote: Assuming the failure rate of drives is not linear, but skewed toward higher failure rate after some period of time (say, 3 yrs) ... See section 3.1 of the Google study: http://research.google.com/archive/disk_failures.pdf although section 4.2 o

Re: [zfs-discuss] What is your data error rate?

2012-01-25 Thread Edward Ned Harvey
> From: zfs-discuss-boun...@opensolaris.org [mailto:zfs-discuss- > boun...@opensolaris.org] On Behalf Of Stefan Ring > > I’ve been running a raidz1 on three 1TB consumer disks for > approx. 2 years now (about 90% full), and I scrub the pool every 3-4 > weeks and have never had a single error. We

Re: [zfs-discuss] What is your data error rate?

2012-01-25 Thread Anonymous Remailer (austria)
I've been watching the heat control issue carefully since I had to take a job offshore (cough reverse H1B cough) in a place without adequate AC and I was able to get them to ship my servers and some other gear. Then I read Intel is guaranteeing their servers will work up to 100 degrees F ambient t

Re: [zfs-discuss] What is your data error rate?

2012-01-24 Thread John Martin
On 01/24/12 17:06, Gregg Wonderly wrote: What I've noticed, is that when I have my drives in a situation of small airflow, and hence hotter operating temperatures, my disks will drop quite quickly. While I *believe* the same thing and thus have over provisioned airflow in my cases (for both dri

Re: [zfs-discuss] What is your data error rate?

2012-01-24 Thread Gregg Wonderly
What I've noticed, is that when I have my drives in a situation of small airflow, and hence hotter operating temperatures, my disks will drop quite quickly. I've now moved my systems into large cases, which large amounts of airflow and using the icydock brand of removable drive enclosures. ht

Re: [zfs-discuss] What is your data error rate?

2012-01-24 Thread Bob Friesenhahn
On Tue, 24 Jan 2012, Jim Klimov wrote: Or does the 10^14 rating just reflect the strength of the on-disk ECC algorithm? I am not sure how much the algorithms differ between "enterprise" and "consumer" disks, while the UBER is said to differ about 100 times. It might have also to do with quali

Re: [zfs-discuss] What is your data error rate?

2012-01-24 Thread Jim Klimov
2012-01-24 19:50, Stefan Ring пишет: After having read this mailing list for a little while, I get the impression that there are at least some people who regularly experience on-disk corruption that ZFS should be able to report and handle. I’ve been running a raidz1 on three 1TB consumer disks fo

[zfs-discuss] What is your data error rate?

2012-01-24 Thread Stefan Ring
After having read this mailing list for a little while, I get the impression that there are at least some people who regularly experience on-disk corruption that ZFS should be able to report and handle. I’ve been running a raidz1 on three 1TB consumer disks for approx. 2 years now (about 90% full),