similar to: 6269165 misleading comments in usr/src/cmd/stat/iostat/iostat.c

Author: petede Repository: /hg/zfs-crypto/gate Revision: b8bdeb324190f487def62382329cf4379354efae Log message: 6249704 exstr fails to close file descriptor Contributed by Shawn Walker <binarycrusader at gmail.com>. Files: update: usr/src/cmd/exstr/exstr.c

Hey, I have a portable harddisk Western Digital 120GB USB. Im running Nevada b42a on Thinkpad T43. Is this a supported configuration for setting up ZFS on portable disks ? Found out some old blogs about this topic: http://blogs.sun.com/roller/page/artem?entry=zfs_on_the_go and some other info under: http://www.sun.com/io_technologies/USB-Faq.html Is this information still valid ? Under ZFS FAQ

I want to create a new array which selects values from an original array based on a function of the indices. That is: I want to create a new matrix Vnew[i,j,k]=Vold[i,j,ks] where ks is a function of the index elements i,j,k. I want to do this WITHOUT a loop. Call the function "ksfunction", and the array dimensions nis,njs,nks. I can do this using a loop as follows: # Loop version:

Author: jpk Repository: /hg/zfs-crypto/gate Revision: e7e07b2f4fcfbe725493f4074f9e9f0d8bfd8e1c Log message: PSARC/2002/762 Layered Trusted Solaris PSARC/2005/060 TSNET: Trusted Networking with Security Labels PSARC/2005/259 Layered Trusted Solaris Label Interfaces PSARC/2005/573 Solaris Trusted Extensions for Printing PSARC/2005/691 Trusted Extensions for Device Allocation PSARC/2005/723 Solaris

Hi All, I am learning iostat command to understand disk I/O statistics. We have 2 Centos 4 servers running where oracle is installed.We installed them 2 weeks ago. @ that time, These Servers performed well. But, Now We have come to know that these 2 Machines are quite slow when comparing to the first week. So, Some say, run iostat to see statictics. I am not familiar with comamnd well. I

Hello zfs-discuss, S10U4+patches, SPARC If I attach a disk to vdev in a pool to get mirrored configuration then during resilver zpool iostat 1 will report only reads being done from pool and basically no writes. If I do zpool iostat -v 1 then I can see it is writing to new device however on a pool and mirror/vdev level it is still reporting only reads. If during resilvering reads

I really need to take a longer look here. /* * zpool iostat [-v] [pool] ... [interval [count]] * * -v Display statistics for individual vdevs * * This command can be tricky because we want to be able to deal with pool . . . I think I may need to deal with a raw option here ? /* * Enter the main iostat loop. */ cb.cb_list = list;

Following is the output of "zpool iostat -v". My question is regarding the datapool row and the raidz2 row statistics. The datapool row statistic "write bandwidth" is 381 which I assume takes into account all the disks - although it doesn''t look like it''s an average. The raidz2 row static "write bandwidth" is 36, which is where I am confused. What

I would like zpool iostat to take a "-p" option to output parsable statistics with absolute counters/figures that for example could be fed to MRTG, RRD, et al. The "zpool iostat [-v] POOL 60 [N]" is great for humans but not very api-friendly; N=2 is a bit overkill and unreliable. Is this info available in kstat, or is this an RFE candidate? In Solaris10? Ditto for zpool

I updated an i386 system to b39 yesterday, and noticed this when running iostat: r/s w/s kr/s kw/s wait actv wsvc_t asvc_t %w %b device 0.0 0.5 0.0 10.0 0.0 0.0 0.0 0.5 0 0 c0t0d0 0.0 0.5 0.0 10.0 0.0 0.0 0.0 0.6 0 0 c0t1d0 0.0 65.1 0.0 119640001.5 0.0 0.0 0.0 0.3 0 2 c0t2d0 0.0 65.1 0.0 119640090.2 0.0

Is there anyway to tell with top or iostat which process is hogging all the disk I/O? Matt

What is the best way to tell if your bound by the number of individual operations per second / random io? "zpool iostat" has an "operations" column but this doesn''t really tell me if my disks are saturated. Traditional "iostat" doesn''t seem to be the greatest place to look when utilizing zfs. Thanks, Chris -------------- next part -------------- An

Hello, We are planning to moving most of our servers to ESX but before buying our SAN, we want to do some I/O stats to see if iSCSI is enough or if we have to go with FC. So I found a plugin for Nagios that can log I/O stats with iostat. So far it's fine with single disk/one partition servers, but on our Oracle Database 10g server, we have two drives in RAID 1 (/dev/sda) and 4 other

Hi Experts, How can I get info for my disks on multipath disks? I mean, usually I use 'iostat' for internal disks, however I need to know status of my multipathig devices, cause I'm monitoring stress test for my application.. Thank you for your responses. Regards, -------------- next part -------------- An HTML attachment was scrubbed... URL:

We have a load balancer/session server that manages sessions in small files. I did a grep on the directory of session files and the server load went from 0.50 to 10.x, for all intents and purposes we were down until I canceled the grep. According to this article on http://www.thattommyhall.com/2011/02/18/iops-linux-iostat/ tps is roughly analogous to iops. Running iostat on the device

Hello ZFSland, Is there any significance in the fact that the bandwidth/read figures for a simple cpio into a ZFS filesystem should be multiples of 21.3K (when non-zero) as follows? What could determine this figure? Do I need to read a manpage? ;-) Thanks... Sean. ----- [root at global:/36g2] # zpool iostat 3 capacity operations bandwidth pool used avail read

Hello experts, I''ve had a lingering question for some time: when I use "zpool iostat -v" the values do not quite sum up. In the example below with a raidz2 array made of 6 drives: * the reported 33K of writes are less than two disks'' workload at this time (at 17.9K each), overall disks writes are 107.4K = 325% of 33K. * write ops sum up to 18 = 225% of 8 ops to

Hi, I'm a newbie to tool 'iostat' and I've read the manual for iostat several times. But it doesn't help. I still get confused with the output of 'iostat', the manual seems too abstract, or high-level, for me. Let's post the output first: avg-cpu: %user %nice %sys %idle 5.70 0.00 3.15 91.15 Device: rrqm/s wrqm/s r/s w/s

Here is a sample of running iostat on a server that has a LUN from a SAN with multiple paths. I am specifying a device list that just grabs the bits related to the multi path device: $ iostat -dxkt 1 2 sdf sdg sdh sdi dm-7 dm-8 dm-9 Linux 2.6.18-371.8.1.el5 (db21b.den.sans.org) 06/20/2014 Time: 02:30:23 PM Device: rrqm/s wrqm/s r/s w/s rkB/s wkB/s avgrq-sz avgqu-sz await

I''m trying to write a SLAMD (http://www.slamd.com/) resource monitor that can be used to measure the I/O throughput on a ZFS pool, and in particular to be able to get the read and write rates. In order to do this, I''m basically executing "zpool iostat {interval}" and parsing the output to capture the values in the "bandwidth read" and "bandwidth