similar to: ARCSTAT Kstat Definitions

Hi all, I have exchanged my Dell R610 in favor of a Sun Fire 4170 M2 which has 32 GB RAM installed. I am running Sol11Expr on this host and I use it to primarily serve Netatalk AFP shares. From day one, I have noticed that the amount of free RAM decereased and along with that decrease the overall performance of ZFS decreased as well. Now, since I am still quite a Solaris newbie, I seem to

Hi ZFSers, I''ve been working on merging the Joyent arcstat enhancements with some of my own and am now to the point where it is time to broaden the requirements gathering. The result is to be merged into the illumos tree. arcstat is a perl script to show the value of ARC kstats as they change over time. This is similar to the ideas behind mpstat, iostat, vmstat, and friends. The current

Hi, Please forgive me if my searching-fu has failed me in this case, but I''ve been unable to find any information on how people are going about monitoring and alerting regarding memory usage on Solaris hosts using ZFS. The problem is not that the ZFS ARC is using up the memory, but that the script Nagios is using to check memory usage simply sees, say 96% RAM used, and alerts. The

Hello. We''re currently using a Sun Blade1000 (2x750MHz, 1G ram, 2x160MB/s mpt scsi buses, skge GigE network) as a NFS backend with ZFS for distribution of free software like Debian (cdimage.debian.org, ftp.se.debian.org) and have run into some performance issues. We are running SX snv_48 and have run with a raidz2 with 7x300G for a while now, just added another 7x300G raidz2 today but

Joseph Little wrote: > I''d love to "vote" to have this addressed, but apparently votes for > bugs are no available to outsiders. > > What''s limiting Stanford EE''s move to using ZFS entirely for our > snapshoting filesystems and multi-tier storage is the inability to > access .zfs directories and snapshots in particular on NFSv3 clients.

We seem to be having write issues with zfs, does anyone see anything in the following: bash-3.00# kstat -p -n arcstats zfs:0:arcstats:c 655251456 zfs:0:arcstats:c_max 5242011648 zfs:0:arcstats:c_min 655251456 zfs:0:arcstats:class misc zfs:0:arcstats:crtime 5699201.4918501 zfs:0:arcstats:data_size 331404288 zfs:0:arcstats:deleted 408216 zfs:0:arcstats:demand_data_hits

Greeting All I have create a pool that consists oh a hard disk and a ssd as a cache zpool create hdd c11t0d0p3 zpool add hdd cache c8t0d0p0 - cache device I ran an OLTP bench mark to emulate a DMBS One I ran the benchmark, the pool started create the database file on the ssd cache device ??????????? can any one explain why this happening ? is not L2ARC is used to absorb the evicted data

Has anyone else noticed a significant zfs performance deterioration when running recent opensolaris bits? My 32-bit / 768 MB Toshiba Tecra S1 notebook was able to do a full opensolaris release build in ~ 4 hours 45 minutes (gcc shadow compilation disabled; using an lzjb compressed zpool / zfs on a single notebook hdd p-ata drive). After upgrading to 2007-05-25 opensolaris release bits

Hi all I ran a workload that reads & writes within 10 files each file is 256M, ie, (10 * 256M = 2.5GB total Dataset Size). I have set the ARC max size to 1 GB on etc/system file In the worse case, let us assume that the whole dataset is hot, meaning my workingset size= 2.5GB My SSD flash size = 8GB and being used for L2ARC No slog is used in the pool My File system record size = 8K ,

Running an mmap-intensive workload on ZFS on a X4500, Solaris 10 11/06 (update 3). All file IO is mmap(file), read memory segment, unmap, close. Tweaked the arc size down via mdb to 1GB. I used that value because c_min was also 1GB, and I was not sure if c_max could be larger than c_min....Anyway, I set c_max to 1GB. After a workload run....: > arc::print -tad { . . . ffffffffc02e29e8

We have a 32 GB RAM server running about 14 zones. There are multiple databases, application servers, web servers, and ftp servers running in the various zones. I understand that using ZFS will increase kernel memory usage, however I am a bit concerned at this point. root at servername:~/zonecfg #mdb -k Loading modules: [ unix krtld genunix specfs dtrace uppc pcplusmp ufs md mpt ip indmux ptm

Hey all - Just a quick one... Is there any plan to update the mdb ::memstat dcmd to present ZFS buffers as part of the summary? At present, we get something like: > ::memstat Page Summary Pages MB %Tot ------------ ---------------- ---------------- ---- Kernel 28859 112 13% Anon 34230

I wrote a simple tool to print out the ARC statistics exported via kstat. Details at http://blogs.sun.com/realneel/entry/zfs_arc_statistics -neel -- --- Neelakanth Nadgir PAE Performance And Availability Eng

I am trying to see how ZFS behaves under resource starvation - corner cases in embedded environments. I see some very strange behavior. Any help/explanation would really be appreciated. My current setup is : OpenSolaris 111b (iSCSI seems to be broken in 132 - unable to get multiple connections/mutlipathing) iSCSI Storage Array that is capable of 20 MB/s random writes @ 4k and 70 MB random reads

Was wondering if anyone can see any issues with the ARC in the following output? bash-3.00# ./arc_summary.pl System Memory: Physical RAM: 6023 MB Free Memory : 784 MB LotsFree: 90 MB ZFS Tunables (/etc/system): ARC Size: Current Size: 1159 MB (arcsize) Target Size (Adaptive): 2106 MB (c) Min Size (Hard Limit): 624 MB (zfs_arc_min) Max Size (Hard Limit): 4999 MB (zfs_arc_max) ARC Size

I would appreciate if somebody can clarify a few points. I am doing some random WRITES (100% writes, 100% random) testing and observe that ARC grows way beyond the "hard" limit during the test. The hard limit is set 512 MB via /etc/system and I see the size going up to 1 GB - how come is it happening? mdb''s ::memstat reports 1.5 GB used - does this include ARC as well or is

I read Ben Rockwood''s blog post about Thumpers and SMART (http://cuddletech.com/blog/pivot/entry.php?id=993). Will the SUNWhd package only work on a Thumper? Can I use this on my snv_101 system with AMD 64 bit processor and nVidia SATA?

Short:     Which package do I need to install to get "auto/I18N/Langinfo/autosplit.ix"? Long: The problem I have was discussed almost a year ago (see this thread), but the resolution was not complete... I''m using Mark Johnson''s slim.py script (package list below), against repo=http://pkg.opensolaris.org/dev, followed by `pkg install xvm-gui` and `svcadm enable

Sep 21 08:57:54 belle fsck: /dev/ad4s1d: 1 DUP I=190 Sep 21 08:57:54 belle fsck: /dev/ad4s1d: UNEXPECTED SOFT UPDATE INCONSISTENCY; RUN fsck MANUALLY. Ok, so I ran fsck manually (even with -y), but yet it refuses to clear/fix whatever to the questions posed as fsck runs. What does this all mean? Thanks, -Clint -- This message has been scanned for viruses and dangerous content by MailScanner,

Hi the Crossbow team, I am testing my UV fastpath bits and I found several issues that need your suggestion: 1. dladm show-usage won''t work if UV fastpath is enabled. Since the link usage data are collected based on the statistics of the mac_client_impl_t, and UV fastpath skips the GLDv3 processing, that won''t be available. I don''t see a solution for this except