SOlaris 10 file system UFS
Hello All.
I'mnot able to mount ufs on optical disk that have 8192 block size if the kernel pagesize is less then 8192. Our driver that manage UDO disk is able to work properly on Sparc with UFS but not on AMD.
Is there any possibility to use UFS on AMD with 8192 block size ?
We are trying to implement ufs on 8192 block size
optical media and we already succed using Solaris
8/9/10 on sparc architecture where PAGESIZE is 8192.
We have our private SCSI driver to pilot optical disk
but no problem, UFS works fine, we simply specify
fragsize=8192 during newfs.
If we do the same on AMD where the PAGESIZE is 4192
we get no error during write but file cannot be read
back. It seems that UFS failes because the PAGESIZE <
Physical block size.I see what you're saying. Yes, I think you'll have problems with trying to make UFS work on a system where pagesize < phys block size.
Sorry for the initial misunderstanding. I have no suggestions for how you might overcome that, or how much code makes that assumption.
Darren
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Can we protect the file system (folder level protection) in Solaris box using access manager?
patrickez wrote:
If I install Solaris 10 on a x86 platform and add a bunch of drives to it to create a zpool (raidz), how do I protect my root filesystem?Solaris 10 doesn't yet support ZFS for a root filesystem, but it is working in some OpenSolaris distributions.
You could use Sun Volume Manager to create a mirror for your root filesystem.
The files in the ZFS file system are well protected, but what about my operating system files down in the root ufs filesystem? If the root filesystem gets corrupted, do I lose the zfs filesystem too?No. They're separate filesystems.
or can I independantly rebuild the root filesystem and just remount the zfs filesystem? Yes. (Actually, you can import the ZFS pool you created).
Should I install solaris 10 on a mirrored set of drives?If you have one, that would work as well.
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Darren -
Hi All,
While trying to use df -k command in my solaris box, I am getting output shown as below.
Filesystem 1024-blocks Used Available Capacity Mounted on
rpool/ROOT/solaris-161 191987712 6004395 140577816 5% /
/devices 0 0 0 0% /devices
/dev 0 0 0 0% /dev
ctfs 0 0 0 0% /system/contract
proc 0 0 0 0% /proc
mnttab 0 0 0 0% /etc/mnttab
swap 4184236 496 4183740 1% /system/volatile
objfs 0 0 0 0% /system/object
sharefs 0 0 0 0% /etc/dfs/sharetab
/usr/lib/libc/libc_hwcap1.so.1 146582211 6004395 140577816 5% /lib/libc.so.1
fd 0 0 0 0% /dev/fd
swap 4183784 60 4183724 1% /tmp
rpool/export 191987712 35 140577816 1% /export
rpool/export/home 191987712 32 140577816 1% /export/home
rpool/export/home/123 191987712 13108813 140577816 9% /export/home/123
rpool/export/repo 191987712 11187204 140577816 8% /export/repo
rpool/export/repo2010_11 191987712 31 140577816 1% /export/repo2010_11
rpool 191987712 5238974 140577816 4% /rpool
/export/home/123 153686630 13108813 140577816 9% /home/12
My question here is why /usr/lib/libc/libc_hwcap1.so.1 file system is having same size as that of / root filesystem? and what is the significance of /usr/lib/libc/libc_hwcap1.so.1 file system..
Thanks in Advance for your help..You must have a lot of small files on the file system.
There are couple of ways, the simplest is to increase the size of the filesystem.
Or if you can create a new filesystem, but increase the inode count so you can utilize the space and still have enough inodes. Check out the man page mkfs_ufs and the option nbpi=n
my 2 bits -
Solaris File System/ Virtual File system Documentation
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thanks in advance,
-mayurAFAIK, the VFS is not an official (and documented) interface
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Other, you can probably get the Solaris 8 Foundation Source,
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Solaris file system performance
I run postmark on solaris and ext3 to compare their performance. I found the Solaris is three times slower than ext3. Is there anything wrong? I use "mount" to display all mount point and can see logging is open for the disk I'm testing. I tried closing the logging by "mount -o nologging" and the performance if even worse. So I think the logging is working. But why the performance is still so bad? My computer has 2G ram and the disk I'm using is SATA disk. I found the white paper from SUN says solaris is much faster than ext3 and they use postmark too. Is there any other parameter?
postmark is all about metadata operation performance. Which UFS has always been fairly bad at since solaris is paranoid about flushing metadata and syncing the disks religously to avoid filesystem corruption in case of sudden reboot.
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You can try mounting the filesystem noatime which should help a bit.
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Hello,
We are going to implement SAP ECC 6.0 with EP 7, BI and CRM on Solaris operating system with IBM DB2 database.
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Thanks.> All these applications are going to be installed on single server, as being a basis person, I know this is not all recommended.
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Markus -
Dear Friends,
Which is the command to create an zfs file system similar to the following command.
newfs -i 200000 -c 256 -C 8 -m 1 /dev/rdsk/c1t1d0s0
Thanks,
Sal.Dear Darren & Friends,
I am trying to install lotus domino in T5240 server, where the mail files will be stored on zfs file system. I would like to tune the ZFS file system for donino before going to the production. Unfortunately sun doesn't have any documnetation for the ZFS file system tuning for domino, but many for ufs. In ufs tuning sun is suggesting like this
"Modern disk subsystems can perform larger data transfers than their predecessors, and Solaris can take
advantage of this to read more data than Domino asks for in hopes of having the next piece of a file already in
memory as soon as Domino asks for it. Unfortunately, Domino doesn't always use the “anticipated” data but
instead next asks for data from an entirely different region of the file, so the effort spent reading the extra data
may be wasted. In extreme circumstances and with modern disk systems Solaris can be fooled into reading
fifty or sixty times as much data as is actually needed, wasting more than 98% of the I/O effort.
To prevent this pathological behavior, build or tune the file systems that hold NSF databases so that Solaris
won't try to read more than about 64KB at a time from them. The instructions that follow show how to do this for
the default Unix File System (UFS); if you are using an alternative file system, consult its documentation.
If you are in a position to build or rebuild the file systems, we suggest using the command
newfs -i 200000 -c 256 -C 8 -m 1 /dev/rdsk/...
The important option is -C 8, which limits the amount of read-ahead to no more than eight pages of 8KB each.
The other options are less important, and may even cause newfs to issue warning messages for some disk
sizes; these warnings can be ignored since newfs will adjust the values to suit the actual disk."
Can I build an zfs file system atleast with the option similaiar to -C 8
Thanks,
Sal. -
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Hi Gurus,
We have installed all SAP components in Solaris 10 zones including Solution Manager.
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--Ragu -
Accessing FAT and NTFS file systems in same machine
hi
i m new in solaris
is it possible to access my windows file system in solaris.
file systems are FAT and NTFS.
regardsYou should be able to mount FAT filesystems as type pcfs.
Theres no native support for NTFS, but I seem to remember a project working on that.
So google for solaris NTFS will probably find it.. -
How to determine the file system on Solaris
Friends,
How to determine which file system I have installed UFS or ZFS on Solaris
ThanksOther methods would include looking at the /etc/vfstab if it's in there or fstyp(1M):
System Administration Commands fstyp(1M)
NAME
fstyp - determine file system type
SYNOPSIS
fstyp [-a | -v] special [:logical-drive] -
How so I protect my root file system? - x86 solaris 10 - zfs data pools
Hello all:
I'm new to ZFS and am trying to understand it better before I start building a new file server. I'm looking for a low cost file server for smaller projects I support and would like to use the ZFS capabilities. If I install Solaris 10 on a x86 platform and add a bunch of drives to it to create a zpool (raidz), how do I protect my root filesystem? The files in the ZFS file system are well protected, but what about my operating system files down in the root ufs filesystem? If the root filesystem gets corrupted, do I lose the zfs filesystem too? or can I independantly rebuild the root filesystem and just remount the zfs filesystem? Should I install solaris 10 on a mirrored set of drives? Can the root filesystem be zfs too? I'd like to be able to use a fairly simple PC to do this, perhaps one that doesn't have built in raid. I'm not looking for 10 terabytes of storage, maybe just four 500gb sata disks connected into a raidz zpool.
thanks,patrickez wrote:
If I install Solaris 10 on a x86 platform and add a bunch of drives to it to create a zpool (raidz), how do I protect my root filesystem?Solaris 10 doesn't yet support ZFS for a root filesystem, but it is working in some OpenSolaris distributions.
You could use Sun Volume Manager to create a mirror for your root filesystem.
The files in the ZFS file system are well protected, but what about my operating system files down in the root ufs filesystem? If the root filesystem gets corrupted, do I lose the zfs filesystem too?No. They're separate filesystems.
or can I independantly rebuild the root filesystem and just remount the zfs filesystem? Yes. (Actually, you can import the ZFS pool you created).
Should I install solaris 10 on a mirrored set of drives?If you have one, that would work as well.
Can the root filesystem be zfs too?Not currently in Solaris 10. The initial root support in OpenSolaris will require the root pool be only a single disk or mirrors. No striping, no raidz.
Darren -
Convert ZFS root file system to UFS with data.
Hi, I would need to covert my ZFS root file systems to UFS and boot from the other disk as a slice (/dev/dsk/c1t0d0s0)
I am ok to split the hard disk from root pool mirror. any ideas on how this can be acheived?
Please sugget. Thanks,from the same document that was quoted above in the Limitations section:
Limitations
Version 2.0 of the Oracle VM Server for SPARC P2V Tool has the following limitations:
Only UFS file systems are supported.
Only plain disks (/dev/dsk/c0t0d0s0), Solaris Volume Manager metadevices (/dev/md/dsk/dNNN), and VxVM encapsulated boot disks are supported on the source system.
During the P2V process, each guest domain can have only a single virtual switch and virtual disk server. You can add more virtual switches and virtual disk servers to the domain after the P2V conversion.
Support for VxVM volumes is limited to the following volumes on an encapsulated boot disk: rootvol, swapvol, usr, var, opt, and home. The original slices for these volumes must still be present on the boot disk. The P2V tool supports Veritas Volume Manager 5.x on the Solaris 10 OS. However, you can also use the P2V tool to convert Solaris 8 and Solaris 9 operating systems that use VxVM.
You cannot convert Solaris 10 systems that are configured with zones. -
After deleting all the partitions on my intel Pentium III computer.
I boot from the first (1/2) CD to start Solaris 8 installation. But
I got the following message:
not UFS file system
Then the computer halted.
Please help me to overcome the problem
Thank you!
MichaelEver figure this out? I just DL'ed the CDs and get the same thing, even created a 2G DOS partition with same results!
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