similar to: ZFS write time performance question

We are looking at the alternatives to VXVM/VXFS. One of the feature which we liked in Veritas, apart from the obvious ones is the ability to call the disks by name and group them in to a disk group. Especially in SAN based environment where the disks may be shared by multiple machines, it is very easy to manage them by disk group names rather than cxtxdx numbers. Does zfs offer such

Hi - a question for all ye rsync guru's out there... I have a need to migrate some fairly large Oracle datafiles from a UFS filesystem to VxFS (VERITAS), however I am not being allowed nearly enough outage time to perform a standard file copy migration. The datafiles (of which there are about 4 are about 50GB each in size and on separate UFS filesystems. I am considering instigating a local

Hi Folks.. We have started to convert our Veritas clustered systems over to ZFS root to take advantage of the extreme simplification of using Live Upgrade. Moving the data of these systems off VxVM and VxFS is not in scope for reasons to numerous to go into.. One thing my customers noticed immediately was a reduction in "free" memory as reported by ''top''. By way

Hi, rsync was running against filesystems /disk5 and /disk7 to back them onto remote server (172.16.101.4) using the following script: if [ `ps -ef | grep -v grep | grep ::d5 | /usr/bin/wc -l` -eq 0 ] then rm -f /etc/rsync5.log echo " --- Disk5 --- starts `date`" > /etc/rsync5.log /usr/local/bin/rsync -a --recursive --compress /disk5/ 172.16.101.4::d5 >> /etc/rsync.log echo

Hello Gurus, Greetings. I have been assigned some work on the development of a migration tool. The requirement is that it has to migrate the data on a UFS/VxFs filesystem to an ext2 filesystem. What are the technical apects I will have to look into to achieve the same? Is it possible to change the on-disk structure of the UFS/VxFs filesystem to an ext2 filesystem? The question may

Hi, sorry if I am brining up old news, but I couldn''t find a good answer searching the previous posts (My mom always says I am bad with finding things :) However I noticed a difference when creating a zfs filesystem compared with a vxfs filesystem in the available size. ie. ZFS zonedata/zfs [b]392G[/b] 120G 272G 31% /zfs VxFS /dev/vx/dsk/zonedg/zonevol

Is it possible to use DTrace to display the number of arguments and their types for userland or kernel functions that are not explicitly instrumented or documented by their authors? We''re talking about functions provided by Veritas VxVM/VxFS and the like, and for example, we might want to try tracing I/Os from App => VxFS => VxVM => ssd driver to see where I/Os get aggregated or

On Wed, Aug 12, 2009 at 11:53 AM, Damjan Perenic<damjan.perenic at guest.arnes.si> wrote: > On Tue, Aug 11, 2009 at 11:04 PM, Richard > Elling<richard.elling at gmail.com> wrote: >> On Aug 11, 2009, at 7:39 AM, Ed Spencer wrote: >> >>> I suspect that if we ''rsync'' one of these filesystems to a second >>> server/pool ?that we would

The paragraph below is from ZFS admin guide Traditional Volume Management As described in ?ZFS Pooled Storage? on page 18, ZFS eliminates the need for a separate volume manager. ZFS operates on raw devices, so it is possible to create a storage pool comprised of logical volumes, either software or hardware. This configuration is not recommended, as ZFS works best when it uses raw physical

Has anyone had any experience with samba on a Solaris 2.6 system using vxfs file system?

Hi, I work on a support team for the Sun StorEdge 6920 and have a question about the use of the SCSI sync cache command in Solaris and ZFS. We have a bug in our 6920 software that exposes us to a memory leak when we receive the SCSI sync cache command: 6456312 - SCSI Synchronize Cache Command is flawed It will take some time for this bug fix to role out to the field so we need to understand

Now that Solaris 10 11/06 is available, I wanted to post the complete list of ZFS features and bug fixes that were included in that release. I''m also including the necessary patches for anyone wanting to get all the ZFS features and fixes via patches (NOTE: later patch revision may already be available): Solaris 10 Update 3 (11/06) Patches sparc Patches * 118833-36 SunOS 5.10:

I''m an Oracle DBA, a dtrace noob, and I''m attempting to resolve an Oracle write performance problem on Solaris 10, Oracle 9iR2. The Oracle DBWR processes have poor write throughput writing to VxFS files. I suspect that the problem may be with POSIX readers/writer file locking. Ideally I''d like to identify, for a given DBWR process, readers/writer file lock contention

Hello experts, We have a large implementation of Symantec Netbackup 6.0 with disk staging. Today, the customer is using VxFS as file system inside Netbackup 6.0 DSSU (disk staging). The customer would like to know if it is best to use ZFS or VxFS as file system inside Netbackup disk staging in order to get the best performance possible. Could you provide some information regarding this

Hi. I''m managing a HDS storage system which is slightly larger than 100 TB and we have used approx. 3/4. We use vxfs. The storage system is attached to a solaris 9 on sparc via a fiberswitch. The storage is shared via nfs to our webservers. If I was to replace vxfs with zfs I could utilize raidz(2) instead of the built-in hardware raid-controller. Are there any jbod-only storage

Greeting All I am using Filebench benchmark in an "Interactive mode" to test ZFS performance with randomread wordload. My Filebench setting & run results are as follwos ------------------------------------------------------------------------------------------ filebench> set $filesize=5g filebench> set $dir=/hdd/fs32k filebench> set $iosize=32k filebench> set

Hi all, i want to replace a bunch of Apple Xserves with Xraids and HFS+ (brr) by Sun x4200 with SAS-Jbods and ZFS. The application will be the Helios UB+ fileserver suite. I installed the latest Solaris 10 on a x4200 with 8gig of ram and two Sun SAS controllers, attached two sas-jbods with 8 SATA-HDDs each und created a zfs pool as a raid 10 by doing something like the following: [i]zpool create

Hi, Does anyone have experiences about ARC-1883I SAS controller with CentOS7? I am planning to have RAID1 setup and I am wondering if I should use the controller's RAID functionality which has 2GB cache or should I go with JBOD + Linux software RAID? The disks I am going to use are 6TB Seagate Enterprise ST6000NM0034 7200rpm SAS/12Gbit 128 MB If hardware RAID is preferred, the

On 29/10/2007, Tek Bahadur Limbu <teklimbu at wlink.com.np> wrote: > I created a ZFS file system like the following with /mypool/cache being > the partition for the Squid cache: > > 18:51:27 root at solaris:~$ zfs list > NAME USED AVAIL REFER MOUNTPOINT > mypool 478M 31.0G 10.0M /mypool > mypool/cache 230M 9.78G 230M

> ZFS 11.0 on Solaris release 06/06, hangs systems when > trying to copy files from my VXFS 4.1 file system. > any ideas what this problem could be?. What kind of system is that? How much memory is installed? I''m able to hang an Ultra 60 with 256 MByte of main memory, simply by writing big files to a ZFS filesystem. The problem happens with both Solaris 10 6/2006 and Solaris