09-07-2015
Aggressively reducing the arc size likely affected ZFS performance. 11 GB were unused, i.e. wasted, when the statistic was captured. You should monitor the memory usage during a long enough period of time to figure out the system peak memory needs.
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I created a zpool and two ZFS volumes in OpenSolaris. I would like both ZFS volumes to be exportable. However, I don't know how to set that up.
These are the steps I did:
1) Create the zpool using raidz1 across five disks.
I have six disks and created a zpool across 5 of them. c4t0d0... (3 Replies)
Discussion started by: sqa777
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2. Solaris
I created a zpool and zfs filesystem in OpenSolaris. I made two NFS mount points:
> zpool history
History for 'raidpool':
2009-01-15.17:12:48 zpool create -f raidpool raidz1 c4t1d0 c4t2d0 c4t3d0 c4t4d0 c4t5d0
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Hey all,
I have a machine with 16 drive slots. Two of the drives have a ZFS mirror of the operating system, the other 14 contain the storage raidz.
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TIA (11 Replies)
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4. Filesystems, Disks and Memory
Hi Folks,
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5. Solaris
Hi guys!
How come ZFS is said to be not just a filesystem but a hybrid filesystem and also a volume manager? Please explain.
I will appreciate your replies. Hope you can help me figure this out.
Thanks in advance! (1 Reply)
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6. Solaris
Hello,
Need to ask the question regarding extending the zfs storage file system.
currently after using the command, df -kh
u01-data-pool/data 600G 552 48G 93% /data
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7. UNIX for Beginners Questions & Answers
I have a esxi 6.7 server running a Solaris 10 x86 vm (actually a bunch of them). The VM uses zfs for the pools (of course). I expand the underlying ESX logical disk, for example from 50GB to 100gb, then I set autoexpand=on <pool> that belongs to the esx logical disk.
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LEARN ABOUT HPUX
vxfs_bc_bufhwm
vxfs_bc_bufhwm(5) File Formats Manual vxfs_bc_bufhwm(5)
NAME
vxfs_bc_bufhwm - VxFS buffer cache high water mark(determines the VxFS buffer cache size)
SYNOPSIS
VALUE
Specify an integer value.
Minimum
6144 KB
Maximum
None
Default
0
DESCRIPTION
VxFS maintains a buffer cache in the kernel for frequently accessed file system metadata in addition to the HP-UX kernel buffer cache that
caches the file data. tunable parameter determines the size of the VxFS buffer cache (the maximum amount of memory that can be used to
cache VxFS metadata).
The default value computed based on the amount of system memory ensures good system performance across a wide range of applications.
The value of is specified in kilobytes. To improve performance during application loads that cause frequent file system metadata changes on
the system (for example, a high rate of file creation or deletion, or accessing large directories), change the value of
Notes
Use the command to monitor buffer cache statistics and inode cache usage.
EXAMPLES
Set the maximum of size of buffer cache at 300000:
WARNINGS
All HP-UX kernel tunable parameters are release specific. This parameter may be removed or its meaning may change in the future releases
of HP-UX.
Installation of optional kernel software, from HP or other vendors, may cause changes to tunable parameter values. After installation,
some tunable parameters may no longer be at the default or recommended values. For information about the effects of installation on tun-
able values, consult the documentation for the kernel software being installed. For information about optional kernel software that was
factory installed on your system, see at
SEE ALSO
kctune(1M), vxfsstat(1M), vx_maxlink(5), vx_ninode(5), vxfs_ifree_timelag(5).
Tunable Kernel Parameters vxfs_bc_bufhwm(5)