Re: dump/restore, how to reduce slice size
# df -h Filesystem SizeUsed Avail Capacity Mounted on /dev/ad4s1a 2G206M1.6G11%/ devfs 1.0k1.0k 0B 100%/dev /dev/ad4s1e3.9G 13M3.6G 0%/tmp /dev/ad4s1f 40G 25G 12G67%/usr /dev/ad4s1d 31G3.6G 24G13%/var procfs 4.0k4.0k 0B 100%/proc /dev/ad2s1f 39G 25G 10G71%/mnt devfs 1.0k1.0k 0B 100%/var/named/dev as you can see /dev/ad4s1f is 40G and /dev/ad2s1f is 39G but on ad4s1f only 25G used. How can I dump /dev/ad4s1f and restore it on /dev/ad2s1f? You can't. ad4s1f has 25G of files, but ad2s1f only has 10G of free space. You need a bigger disk. If you're just moving things around, I agree that a $100 USB disk is the best way to store backups temporarily. R's, John ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: dump/restore, how to reduce slice size
On Fri, Sep 30, 2011 at 03:41:26PM +0200, Damien Fleuriot wrote: On 9/29/11 10:09 PM, Jerry McAllister wrote: On Thu, Sep 29, 2011 at 10:36:38PM +0300, ??? ??? wrote: Hi, Freebsd-questions. # df -h Filesystem SizeUsed Avail Capacity Mounted on /dev/ad4s1a 2G206M1.6G11%/ devfs 1.0k1.0k 0B 100%/dev /dev/ad4s1e3.9G 13M3.6G 0%/tmp /dev/ad4s1f 40G 25G 12G67%/usr /dev/ad4s1d 31G3.6G 24G13%/var procfs 4.0k4.0k 0B 100%/proc /dev/ad2s1f 39G 25G 10G71%/mnt devfs 1.0k1.0k 0B 100%/var/named/dev as you can see /dev/ad4s1f is 40G and /dev/ad2s1f is 39G but on ad4s1f only 25G used. How can I dump /dev/ad4s1f and restore it on /dev/ad2s1f? These commands: #mount /dev/ad2s1f /mnt #cd /mnt #dump -0Lf - /usr | restore -rf - does not help, because of ad2s1f does not have space to restore 'end of ' /dev/ad4s1f. May help any? Well, you are going to have difficulty putting 50 GB on a 39 GB partition. (25GB + 25GB = 50GB). It won't work. You could try compressing the dump, but dump files do not tend to compress well and even if you got a 50% compression, you would still be really close to overfill. Probably you need to go to the store and get a nice big USB drive and slice and partition it in to a bunch of 50 GB partitions and pipe your dump to a restore in those partitions on that drive. You can round-robin your backups to those USB partitions. My backup to a USB hard drive just saved me the beginning of this week when the old machine died of heat prostration. Dump is supposed to take only the used space. Yes. He already has 25 GB used on the partition and wants to add another approx 25 GB in a 39 GB partition. There ain't room. jerry @OP, refer the following link for correct dump/restore syntax: http://www.wonkity.com/~wblock/docs/html/backup.html#_tt_dump_tt_with_compression ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re[2]: dump/restore, how to reduce slice size
Здравствуйте, Robert. Вы писали 30 сентября 2011 г., 4:11:15: From owner-freebsd-questi...@freebsd.org Thu Sep 29 14:37:35 2011 Date: Thu, 29 Sep 2011 22:36:38 +0300 From: =?windows-1251?B?yu7t/Oru4iDF4uPl7ejp?= kes-...@yandex.ru To: freebsd-questions@freebsd.org Subject: dump/restore, how to reduce slice size Hi, Freebsd-questions. # df -h Filesystem SizeUsed Avail Capacity Mounted on /dev/ad4s1a 2G206M1.6G11%/ devfs 1.0k1.0k 0B 100%/dev /dev/ad4s1e3.9G 13M3.6G 0%/tmp /dev/ad4s1f 40G 25G 12G67%/usr /dev/ad4s1d 31G3.6G 24G13%/var procfs 4.0k4.0k 0B 100%/proc /dev/ad2s1f 39G 25G 10G71%/mnt devfs 1.0k1.0k 0B 100%/var/named/dev as you can see /dev/ad4s1f is 40G and /dev/ad2s1f is 39G but on ad4s1f only 25G used. How can I dump /dev/ad4s1f and restore it on /dev/ad2s1f? These commands: #mount /dev/ad2s1f /mnt #cd /mnt #dump -0Lf - /usr | restore -rf - does not help, because of ad2s1f does not have space to restore 'end of ' /dev/ad4s1f. May help any? RB ad2s1f already has 25 gigs of stuff on it. with ounly 14 gigs 'free'. RB ad4s1f has 25 gigs of stuff on _it_. RB The 25 gigs of ad4s1f will not fit in the 14 gigs of free space on RB ad2s1f. It is state after restoration. Before that I do the prestine file system with: newfs /dev/ad2s1f mount /dev/ad2s1f /mnt cd /mnt dump -0Lf - /usr | restore -rf - at the end of restore process I got error about that on target file system there is no inode . abourt? [yn] I type 'n'. there are about 10 inodes missed. when I compare files it seems that are same on source and target. Is that Ok, may I do not worry about that error messages? RB Now, RB *IF* the existing 'stuff' on ad2s1f is of no value, and the -only- thing RB you want to have on that filesystem is the 'copy' of ad4s1f, RB *THEN* there is 'simple' solution. You need to delete the files on RB ad4s1f -before- trying the dump/restor. In the commnds you show, above, RB fter the 'cd /mnt', and before the dump/restore, Type in 'rm -fr /mnt/*', RB but DO NOT hit the enter key. Look at what you typed, and make sure RB that there is no white-spce immediately before the '*'. Double check RB that there is no whitespce after the first '/'. or before the 2nd one. RB TRIPLE CHECK that there are no spaces before the '*'. Have you made RB a full back-up of the system recently? If not, abort this commqnd, and RB make the full backup before trying this again. RB *IF* you are absolutely certain you have typed the commnd correctly, _and_ RB you have current full-system backup, then go ahead nd press the enter RB key. thank you for attention. I understand that. RB As my friend Dante Brown once remarked: RB All hope abandon RB ye who press Enter RB here. -- С уважением, Коньков mailto:kes-...@yandex.ru ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
dump/restore, how to reduce slice size
Hi, Freebsd-questions. # df -h Filesystem SizeUsed Avail Capacity Mounted on /dev/ad4s1a 2G206M1.6G11%/ devfs 1.0k1.0k 0B 100%/dev /dev/ad4s1e3.9G 13M3.6G 0%/tmp /dev/ad4s1f 40G 25G 12G67%/usr /dev/ad4s1d 31G3.6G 24G13%/var procfs 4.0k4.0k 0B 100%/proc /dev/ad2s1f 39G 25G 10G71%/mnt devfs 1.0k1.0k 0B 100%/var/named/dev as you can see /dev/ad4s1f is 40G and /dev/ad2s1f is 39G but on ad4s1f only 25G used. How can I dump /dev/ad4s1f and restore it on /dev/ad2s1f? These commands: #mount /dev/ad2s1f /mnt #cd /mnt #dump -0Lf - /usr | restore -rf - does not help, because of ad2s1f does not have space to restore 'end of ' /dev/ad4s1f. May help any? -- Konkov mailto:kes-...@yandex.ru ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: dump/restore, how to reduce slice size
On Thu, Sep 29, 2011 at 10:36:38PM +0300, ??? ??? wrote: Hi, Freebsd-questions. # df -h Filesystem SizeUsed Avail Capacity Mounted on /dev/ad4s1a 2G206M1.6G11%/ devfs 1.0k1.0k 0B 100%/dev /dev/ad4s1e3.9G 13M3.6G 0%/tmp /dev/ad4s1f 40G 25G 12G67%/usr /dev/ad4s1d 31G3.6G 24G13%/var procfs 4.0k4.0k 0B 100%/proc /dev/ad2s1f 39G 25G 10G71%/mnt devfs 1.0k1.0k 0B 100%/var/named/dev as you can see /dev/ad4s1f is 40G and /dev/ad2s1f is 39G but on ad4s1f only 25G used. How can I dump /dev/ad4s1f and restore it on /dev/ad2s1f? These commands: #mount /dev/ad2s1f /mnt #cd /mnt #dump -0Lf - /usr | restore -rf - does not help, because of ad2s1f does not have space to restore 'end of ' /dev/ad4s1f. May help any? Well, you are going to have difficulty putting 50 GB on a 39 GB partition. (25GB + 25GB = 50GB). It won't work. You could try compressing the dump, but dump files do not tend to compress well and even if you got a 50% compression, you would still be really close to overfill. Probably you need to go to the store and get a nice big USB drive and slice and partition it in to a bunch of 50 GB partitions and pipe your dump to a restore in those partitions on that drive. You can round-robin your backups to those USB partitions. My backup to a USB hard drive just saved me the beginning of this week when the old machine died of heat prostration. jerry jerry -- Konkov mailto:kes-...@yandex.ru ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
