|
|
Sponsored Content
Top Forums
UNIX for Dummies Questions & Answers
Solaris 2.6 - Duplicate Filesystem to a larger slice(same drive)
Post 302532865 by DGPickett on Wednesday 22nd of June 2011 08:56:26 AM
06-22-2011
A couple 'is that the best solution' ideas:I suppose if you copy one raw partition to the next, you do not get a usable larger file system! 
Using two processes as you did, not 'cp -rp `ls -A` target_dir', will usually speed things, as UNIX is single buffered. If you multiplex the file list to many pairs, you might double the speed again, but files might be a bit more page-interlaced (fragmented). Of course, if they are on the same spindle, cable or controller, that might not speed up much if at all.
If you copy by mod age of inode oldest first, the files will be defragmented, as well, and the future fragmentation tends to occur at the end, in younger files. I am still waiting the fs to end all fs, where the stuff moves and defrags in the background to be mirrored or raid N, compressed, backed up on remote nodes, possibly many, possibly compressed in all or all but one copy, some quiescent files not even copied locally, and with the files relocated so the activity of each device versus the bandwidth of the device is leveled (less active files on larger, slower devices, including CD/DVD/WORM), with old versions also preserved as backup, either mandatory or space available.
- Can you use a volume manager to allow you to dole out more space to the old fs?
- Can you convert the old fs to zfs and compress?
Using two processes as you did, not 'cp -rp `ls -A` target_dir', will usually speed things, as UNIX is single buffered. If you multiplex the file list to many pairs, you might double the speed again, but files might be a bit more page-interlaced (fragmented). Of course, if they are on the same spindle, cable or controller, that might not speed up much if at all.
If you copy by mod age of inode oldest first, the files will be defragmented, as well, and the future fragmentation tends to occur at the end, in younger files. I am still waiting the fs to end all fs, where the stuff moves and defrags in the background to be mirrored or raid N, compressed, backed up on remote nodes, possibly many, possibly compressed in all or all but one copy, some quiescent files not even copied locally, and with the files relocated so the activity of each device versus the bandwidth of the device is leveled (less active files on larger, slower devices, including CD/DVD/WORM), with old versions also preserved as backup, either mandatory or space available.
Last edited by DGPickett; 06-22-2011 at 10:02 AM..
|
|
9 More Discussions You Might Find Interesting
1. Filesystems, Disks and Memory
I have encountered my first problem of the year at work with one of our NMS servers. We would like to migrate Cisco Works to Solaris, as it is currently running on NT. The NMS is already running OpenView NNM 6.2 (primary NMS program). Anyhow the /var slice is only 6 mb and is almost full, as... (2 Replies)
Discussion started by: obsolesence
2 Replies
2. Solaris
Hi there
I am about to mirror a Solaris 10 x86 box (SunFire X4100) onto a secondary disk using svm (current system is one disk). My question is this, on X86 boxes there is a slice 8 defined as boot partition (and also a slice 9, dunno what its used for tho). Do I need to mirror this boot slice... (0 Replies)
Discussion started by: hcclnoodles
0 Replies
3. Filesystems, Disks and Memory
I have a drive that I need to make a sector-by-sector or exact image copy of. In Windows, I use a program call Ghost by Symantec, but the version I have does not support Unix.
Does anyone know of a good product for Unix?
Thanks,
Brett Gibson
Gibson Teldata, Inc. (13 Replies)
Discussion started by: bgibson
13 Replies
4. Solaris
Hi,
df -h display:
# df -h
Filesystem size used avail capacity Mounted on
/dev/dsk/c1t0d0s0 9.8G 8.1G 1.7G 84% /
/proc 0K 0K 0K 0% /proc
mnttab 0K 0K 0K 0% /etc/mnttab
fd 0K 0K 0K 0% /dev/fd
swap 1.0G 152K 1.0G 1% /var/run
swap 1.1G 24M 1.0G 3% /tmp
/dev/dsk/c1t0d0s3 57G 13G 43G 24%... (4 Replies)
Discussion started by: lamoul
4 Replies
5. Solaris
I am using Solaris Sparc 10,and facing some issues.
HD:80gb ; Root = 11gb(currently using) , I have made a parttition in the c0t0d0s2 slice(which is of 60gb & the partition tag is 'usr'),and I have done newfs on -> /dev/dsk/c0t0d0s2 which is mounted on /export (having ufs filesystem).
Now... (6 Replies)
Discussion started by: big_zer0
6 Replies
6. Solaris
I'm new to UNIX, sort of inherited this job. I have an HP lefthand SAN, where I added 100GB to one of the volumes. As I understand I also have to expand the volume on the server (solaris 10 ) as well. So, how do I do that? The file system is called: sybdump. the mount point is /export/xxx/sybdump.... (19 Replies)
Discussion started by: Spaseman
19 Replies
7. HP-UX
Hi,
I have a problem again and I hope that someone on this forum will help me in solving it. My English is weak, but I'll try to describe it clearly.
I have an old computer ( HP B180) with HP-UX 10.20. I've done the hard disk image using G4L and replaced the drive. Old drive has 4.3 GB and 9.1... (7 Replies)
Discussion started by: ftwojtek
7 Replies
8. Solaris
I like to increase swap size for my current server running solaris 10.
Seems like the system is not using it's full 16G of physical memory.
#swap -l
swapfile dev swaplo blocks free
/dev/dsk/c0t0d0s1 32,1 16 1058288 1058288
# swap -s
total: 4125120k bytes... (17 Replies)
Discussion started by: JT-KGY
17 Replies
9. Solaris
Hi all,
I added a new disk slice to the current metadb.
Below is what I see
bash-3.2# metadb -i
flags first blk block count
a m p luo 16 8192 /dev/dsk/c0t0d0s7
a p luo 8208 8192 ... (3 Replies)
Discussion started by: javanoob
3 Replies
LEARN ABOUT V7
dh_compress
DH_COMPRESS(1) Debhelper DH_COMPRESS(1) NAME
dh_compress - compress files and fix symlinks in package build directories SYNOPSIS
dh_compress [debhelperoptions] [-Xitem] [-A] [file...] DESCRIPTION
dh_compress is a debhelper program that is responsible for compressing the files in package build directories, and makes sure that any symlinks that pointed to the files before they were compressed are updated to point to the new files. By default, dh_compress compresses files that Debian policy mandates should be compressed, namely all files in usr/share/info, usr/share/man, files in usr/share/doc that are larger than 4k in size, (except the copyright file, .html and other web files, image files, and files that appear to be already compressed based on their extensions), and all changelog files. Plus PCF fonts underneath usr/share/fonts/X11/ FILES
debian/package.compress These files are deprecated. If this file exists, the default files are not compressed. Instead, the file is ran as a shell script, and all filenames that the shell script outputs will be compressed. The shell script will be run from inside the package build directory. Note though that using -X is a much better idea in general; you should only use a debian/package.compress file if you really need to. OPTIONS
-Xitem, --exclude=item Exclude files that contain item anywhere in their filename from being compressed. For example, -X.tiff will exclude TIFF files from compression. You may use this option multiple times to build up a list of things to exclude. -A, --all Compress all files specified by command line parameters in ALL packages acted on. file ... Add these files to the list of files to compress. CONFORMS TO
Debian policy, version 3.0 SEE ALSO
debhelper(7) This program is a part of debhelper. AUTHOR
Joey Hess <joeyh@debian.org> 11.1.6ubuntu2 2018-05-10 DH_COMPRESS(1)