Maybe there are too many I/Os for this controller.
You may try this settings
B130
echo zfs_txg_synctime_ms/W0t2000 | mdb -kw
echo zfs_vdev_max_pending/W0t5 | mdb -kw
older versions
echo zfs_txg_synctime/W0t2 | mdb -kw
echo zfs_vdev_max_pending/W0t5 | mdb -kw
Andreas
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This message posted
I did the same experiment in an VMWare guest (SLES10 x64). The archive was
stored on the vdisk and untarring went to the same vdisk.
The storage backend is sun system with 64 GB RAM, 2*QC cpus, 24 SAS disks with
450 GB, 4 vdevs with 6 disks as RAIDZ2, an Intel X25-E as log device (c2t1d0).
A
You may have a look in the whitepaper from Torsten Frueauf.
see here http://sun.systemnews.com/articles/137/4/OpenSolaris/22016
This should give you the functionality of a DRBD-Cluster.
Andreas
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If you read this
http://hub.opensolaris.org/bin/download/Project+colorado/files/Whitepaper-OpenHAClusterOnOpenSolaris-external.pdf
and especially starting at page 25 you will find a detailed explanation how to
implement a storage cluster with shared storage based on Comstar and ISCSI.
If you want
Use
zfs get -Hp used pool1/nfs1
to get a parsable output.
Andreas
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zfs-discuss@opensolaris.org
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The Intel SSD is not a dual ported SAS device. This device must be supported by
the SAS expander in your external chassis.
Did you use an AAMUX transposer card for the SATA device between the connector
of the chassis and the SATA drive?
Andreas
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Here is a dtrace script based of one of the examples for the nfs provider.
Especially useful when you use NFS for ESX or other hypervisors.
Andreas
#!/usr/sbin/dtrace -s
#pragma D option quiet
inline int TOP_FILES = 50;
dtrace:::BEGIN
{
printf(Tracing... Hit Ctrl-C to end.\n);
Ray
Supermicro does not support the use of SSDs behind an expander.
You must put the SSD in the head or use an interposer card see here:
http://www.lsi.com/storage_home/products_home/standard_product_ics/sas_sata_protocol_bridge/lsiss9252/index.html
Supermicro offers an interposer card too:
This was the information I got from the distributor but this faq is newer.
Anyway you have still the problems.
When we installed the Intel-X25 we had also problems with timeout.
We replaced the original SUN StorageTek SAS HBA (LSI based, 1068E, newest
firmware) with an original SUN StorageTek
