Hi,
Recently we have new server T5 Oracle. We set up it for our database. For out database files we set one zfs filesystem. When i use iostat -xc the output as below. As you see the value for vdc4 is quite high.
When i look on the output for memstat. The ZFS filesystem taking high mem percentange.
Is this normal? When we database full backup the db will hang although the server load is normal during backup. Is that maybe related to the zfs filesystem setting? Hope can engligthen me on these.
Last edited by Don Cragun; 08-24-2015 at 01:37 AM..
Reason: Change ICODE tags to CODE tags, add ICODE tags.
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)
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
2009-01-15.17:15:54 zfs create -o mountpoint=/vol01 -o sharenfs=on -o... (0 Replies)
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.
So, after installing Opensolaris on the OS drives, how can I remount the storage raid?
TIA (11 Replies)
Hi Folks,
Looking for info here more than any actual HowTo, does anyone know if there is an actual way of converting a Veritas or UFS filesystem to ZFS leaving the resident data intact.
All that I have been able to find, including the commercial products seem to require the FS backed up from... (1 Reply)
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)
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
/data are only 48 gb remaining and it has occupied 93% for total storage.
zpool u01-data-pool has more then 200 gb... (14 Replies)
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.
what am i missing to... (2 Replies)
Discussion started by: mrmurdock
2 Replies
LEARN ABOUT DEBIAN
memstat
MEMSTAT(1) Linux Programmer's Manual MEMSTAT(1)NAME
memstat - Identify what's using up virtual memory.
SYNOPSIS
memstat [-w][-p PID]
DESCRIPTION
memstat lists all accessible processes, executables, and shared libraries that are using up virtual memory. To get a complete list memstat
has to be run as root to be able to access the data of all running processes.
First, the processes are listed. An amount of memory is shown along with a process ID and the name of the executable which the process is
running. The amount of memory shown does not include shared memory: it only includes memory which is private to that process. So, if a
process is using a shared library like libc, the memory used to hold that library is not included. The memory used to hold the exe-
cutable's text-segment is also not included, since that too is shareable.
After the processes, the shared objects are listed. The amount of memory is shown along with the filename of the shared object, followed
by a list of the processes using the shared object. The memory is listed as the total amount of memory allocated to this object throughout
the whole namespace. In brackets also the amount that is really shared is listed.
Finally, a grand total is shown. Note that this program shows the amount of virtual (not real) memory used by the various items.
memstat gets its input from the /proc filesystem. This must be compiled into your kernel and mounted for memstat to work. The pathnames
shown next to the shared objects are determined by scanning the disk. memstat uses a configuration file, /etc/memstat.conf, to determine
which directories to scan. This file should include all the major bin and lib directories in your system, as well as the /dev directory.
If you run an executable which is not in one of these directories, it will be listed by memstat as ``[0dev]:<inode>''.
Options
The -w switch causes a wide printout: lines are not truncated at 80 columns.
The -p switch causes memstat to only print data gathered from looking at the process with the gicen PID.
NOTES
These reports are intended to help identify programs that are using an excessive amount of memory, and to reduce overall memory waste.
FILES
/etc/memstat.conf
/proc/*/maps
SEE ALSO ps(1), top(1), free(1), vmstat(8), lsof(8), /usr/share/doc/memstat/memstat-tutorial.txt.gz
BUGS
memstat ignores all devices that just map main memory, though this may cause memstat to ignore some memory usage.
Memory used by the kernel itself is not listed.
AUTHOR
Originally written by Joshua Yelon <jyelon@uiuc.edu> and patched by Bernd Eckenfels <ecki@debian.org>. Taken over and rewritten by Michael
Meskes <meskes@debian.org>.
Debian 01 November 1998 MEMSTAT(1)