[zfs-discuss] l2arc_noprefetch
When running real data, as opposed to benchmarks, I notice that my l2arc stops filling, even though the majority of my reads are still going to primary storage. I'm using 5 SSDs for L2ARC, so I'd expect to get good throughput, even with sequential reads. I'd like to experiment with disabling the l2arc_noprefetch feature, to see how the performance compares by caching more data. How exactly do I do that? Right now, I added the following line to /etc/system, but it doesn't seem to have made a difference. I'm still seeing most of my reads go to primary storage, even though my cache should be warm by now, and my SSDs are far from full. set zfs:l2arc_noprefetch = 0 Am I setting this wrong? Am misunderstanding this option? Thanks, Rob -- This message posted from opensolaris.org ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
[zfs-discuss] problem adding second MD1000 enclosure to LSI 9200-16e
I have 15x SAS drives in a Dell MD1000 enclosure, attached to an LSI 9200-16e. This has been working well. The system is boothing off of internal drives, on a Dell SAS 6ir. I just tried to add a second storage enclosure, with 15 more SAS drives, and I got a lockup during Loading Kernel. I got the same results, whether I daisy chained the enclosures, or plugged them both directly into the LSI 9200. When I removed the second enclosure, it booted up fine. I also have an LSI MegaRAID 9280-8e I could use, but I don't know if there is a way to pass the drives through, without creating RAID0 virtual drives for each drive, which would complicate replacing disks. The 9280 boots up fine, and the systems can see new virtual drives. Any suggestions? Is there some sort of boot procedure, in order to get the system to recognize the second enclosure without locking up? Is there a special way to configure one of these LSI boards? Thanks, Rob -- This message posted from opensolaris.org ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] problem adding second MD1000 enclosure to LSI 9200-16e
Any suggestions? Is there some sort of boot procedure, in order to get the system to recognize the second enclosure without locking up? Is there a special way to configure one of these LSI boards? It should just work, make sure you connect it right way and both JBODs are not in split mode (which does not allow daisy chaining). Yours Markus Kovero ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] problem adding second MD1000 enclosure to LSI 9200-16e
Markus, I'm pretty sure that I have the MD1000 plugged in properly, especially since the same connection works on the 9280 and Perc 6/e. It's not in split mode. Thanks for the suggestion, though. -- This message posted from opensolaris.org ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] ZFS - Sudden decrease in write performance
This is probably the same write throttle issue which has been discussed to length on this list. Check the archives for zfs write throttle, especially posts from Jun-Jul 2009. Suresh -- This message posted from opensolaris.org ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
[zfs-discuss] vidoe files residing on zfs used from cifs fail to work
I find that at least some kinds of video files when accessed on zfs server from windows machines will not work. In particular that seems to hold for quicktime files. When *.mov file reside on a windows host, and assuming your browser has the right plugins, you can open them with either quicktime player or firefox (which also uses the quicktime player). But I find if the files are on a zfs server the same files fail to play. Is it a local phenomena or a common problem/ I've also had similar problems with *.avi contained files (not sure of compressor). I haven't heard loud laments about this so hoping it might be something on my end since it would really be a shame if I cannot do my video work on a zfs share and so take advantage of snapshots while work is underway. Something like a versioning system can be gotten out of the snapshots if need be. ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] vidoe files residing on zfs used from cifs fail to work
On 11/22/10 05:43 PM, Harry Putnam wrote: I find that at least some kinds of video files when accessed on zfs server from windows machines will not work. In particular that seems to hold for quicktime files. When *.mov file reside on a windows host, and assuming your browser has the right plugins, you can open them with either quicktime player or firefox (which also uses the quicktime player). But I find if the files are on a zfs server the same files fail to play. Is it a local phenomena or a common problem/ I've also had similar problems with *.avi contained files (not sure of compressor). Not for me, I've been sharing all forms of media via CIFS to windows clients for a couple of years or more. -- Ian. ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
[zfs-discuss] X11 XtAppAddTimeOut is not working properly.
Hi All
I have written Following program so that fun() gets called by every 10 mili
seconds.But after executing the program I Found its calling the function after
20 mili seconds.If I specify timeinterval as 20 mili second in XtAppAddTimeOut
function its calling fun method after 30 mili seconds.
Here is my Code :
XtIntervalId main_timer;
static XtAppContext app_context;
unsigned long interval=10;
void setup();
void fun()
{
time_t curtime;
char buffer[30];
struct timeval tv;
gettimeofday(tv, NULL);
curtime=tv.tv_sec;
strftime(buffer,30,%m-%d-%Y %T.,localtime(curtime));
//printf(%s%ld\n,buffer,tv.tv_usec/1000);
coutbuffer-tv.tv_usec/1000##EXIT##Received SIGTERM
signalendl;
//LOG_AXIS_INFO(##EXIT##Received SIGTERM signal);
setup();
}
void TimeOutCB(XtPointer cl_data, XtIntervalId *timer)
{
fun();
}
void setup()
{
//setup();
XtAppAddTimeOut(app_context, interval, TimeOutCB, NULL);
}
int main(int argc, char *argv[])
{
argc = 2;
char* argv1[] = {One, Two};
XtVaAppInitialize (app_context, ConfigFileReaderTest, NULL, 0,
argc, argv1, NULL, NULL);
setup();
// signal( SIGTERM, handleSigTerm );
while(1)
{
XtAppProcessEvent(app_context, XtIMAll);
}
return 0;
}
X11 library I am using is ./libX11.so.5.
Enterprise Solaris Version is Solaris 10 update 9
Can you please suggest whether there is any fix for it .As same code I have
seen is working with Linux .
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[zfs-discuss] X11 XtAppAddTimeOut is not working properly.
Hi All I have written Following program so that fun() gets called by every 10 mili seconds.But after executing the program I Found its calling the function after 20 mili seconds.If I specify timeinterval as 20 mili second in XtAppAddTimeOut function its calling fun method after 30 mili seconds. I am attaching my code . Solaris Version I am using it Solaris 10 updated 9 X11c library version is libX11.so.5 Please let me know if there is any fix available for it . -- This message posted from opensolaris.org test.cpp Description: Binary data ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] vidoe files residing on zfs used from cifs fail to work
On 11/21/10 Nov 21, 8:43 PM, Harry Putnam rea...@newsguy.com wrote: When *.mov file reside on a windows host, and assuming your browser has the right plugins, you can open them with either quicktime player or firefox (which also uses the quicktime player). But I find if the files are on a zfs server the same files fail to play. Is it a local phenomena or a common problem? We don't have that problem, and we have roughly 25TB of QuickTime files on an OpenSolaris box shared over CIFS to mostly Mac clients. -- Dave Pooser, ACSA Manager of Information Services Alford Media http://www.alfordmedia.com ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
