Re: [CentOS] Compact Flash..
Michel van Deventer wrote: Hi, On Sun, 2008-06-08 at 16:38 -0500, Ryan Nichols wrote: Ok.. Im curious.. Can I install CentOS on a compact flash card, then have the MySQL on another drive? to have the compact flash like read only for the OS to boot from, then do the swap, mysql,etc from the other drive? How hard would this be to do? Yes, you can (of course). My backupserver boots from CF (only kernel +initrd) and then continues from harddrive. I do not have a howto here but if you search google, you'll probably find a lot of them. Regards, Michel ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos I have searched google, and all i get is more and more confused... Maybe I need to not go this route. I was trying to get the CF as the system drive and keep the database on a seperate drive incase either failed.. seemed like it made sense at the time.. Ryan Nichols ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Compact Flash..
It's easy. Look - you can get an IDE -to- CF adapter for about a fiver. Get a 4 or 8 GB CF card and install it on IDE 01. That's your main drive. Set up your other drives in what ever config is necessary. Solo, Software RAID, whatever. Do your install. Either use the partition editor, or boot into Knoppix and run gparted to format your other drives. After install - edit that FSTAB to make sure everything is in order. For example, on one of the other drives you could set a mount point as '/data'. Configure MySQL. *database can be anywhere, NFS share or other FS. It doesn't matter as long as you configure my.cnf to tell MySQL where to look. Here is one of my production machine's my.cnf using databases from a /data partition (which is on a RAID FS). Although MySQL is installed at /usr/local - the databases are all on /data. Read you man pages and have a noodle through the MySQL website for declaring options for my.cnf = [client] port=3306 socket=/tmp/mysql.sock [mysqld] log-bin=example-bin server-id=4 port=3306 socket=/tmp/mysql.sock query_cache_size = 200M set-variable = key_buffer_size=512M set-variable = max_allowed_packet=2M set-variable = max_binlog_size=20M set-variable = record_buffer=200K set-variable = net_buffer=100K set-variable = max_connections=1000 set-variable = thread_cache_size=20 set-variable = thread_stack=128K innodb_data_file_path = data/mysql/innodb/datafile01:1M innodb_data_home_dir = / set-variable = innodb_mirrored_log_groups=1 innodb_log_group_home_dir = /data/mysql/innodb/ set-variable = innodb_log_files_in_group=3 set-variable = innodb_log_file_size=10M set-variable = innodb_log_buffer_size=8M innodb_flush_log_at_trx_commit=1 innodb_log_arch_dir = /data/mysql/innodb/ innodb_log_archive=0 set-variable = innodb_buffer_pool_size=128M set-variable = innodb_additional_mem_pool_size=20M set-variable = innodb_file_io_threads=4 set-variable = innodb_lock_wait_timeout=50 default-table-type = innodb log-slow-queries = /data/mysql/slow-queries.log ft_min_word_len=3 set-variable = wait_timeout=604800 [mysqldump] quick = -Peter 2008/6/9 Ryan Nichols [EMAIL PROTECTED]: Michel van Deventer wrote: Hi, On Sun, 2008-06-08 at 16:38 -0500, Ryan Nichols wrote: Ok.. Im curious.. Can I install CentOS on a compact flash card, then have the MySQL on another drive? to have the compact flash like read only for the OS to boot from, then do the swap, mysql,etc from the other drive? How hard would this be to do? Yes, you can (of course). My backupserver boots from CF (only kernel +initrd) and then continues from harddrive. I do not have a howto here but if you search google, you'll probably find a lot of them. Regards, Michel ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos I have searched google, and all i get is more and more confused... Maybe I need to not go this route. I was trying to get the CF as the system drive and keep the database on a seperate drive incase either failed.. seemed like it made sense at the time.. Ryan Nichols ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Compact Flash..
John R Pierce wrote: Ryan Nichols wrote: I was trying to get the CF as the system drive and keep the database on a seperate drive incase either failed.. seemed like it made sense at the time.. if the CF fails, it won't boot. if the HD fails, you've lost your database.not sure what the gain is here. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos CF Fails, i can re inject it into a new CF card and away I go. yes if the HD fails ive lost the database, but its a monitoring box, toss a new one in , reboot the box and away we go. Ryan Nichols ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Compact Flash..
I generally will do one of two things in addition to my normal backups. 1. run a cron that exports the database, then gzip it - I rsync that off to another machine. 2. I replicate the database to other machines in the same tier. I agree about the CF failure as well. No biggie. I would copy it's partition somewhere else once a week for a potential restore of just such a failure. -Peter 2008/6/9 Ryan Nichols [EMAIL PROTECTED]: John R Pierce wrote: Ryan Nichols wrote: I was trying to get the CF as the system drive and keep the database on a seperate drive incase either failed.. seemed like it made sense at the time.. if the CF fails, it won't boot. if the HD fails, you've lost your database.not sure what the gain is here. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos CF Fails, i can re inject it into a new CF card and away I go. yes if the HD fails ive lost the database, but its a monitoring box, toss a new one in , reboot the box and away we go. Ryan Nichols ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Compact Flash..
CF Fails, i can re inject it into a new CF card and away I go. yes if the HD fails ive lost the database, but its a monitoring box, toss a new one in , reboot the box and away we go. but as either cant operate without the other you have just doubled your chances of an outage rather than reduced it ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Compact Flash..
Tom Brown wrote: CF Fails, i can re inject it into a new CF card and away I go. yes if the HD fails ive lost the database, but its a monitoring box, toss a new one in , reboot the box and away we go. but as either cant operate without the other you have just doubled your chances of an outage rather than reduced it You have lowered the MTTR but gained a higher MTTF and that was maybee your goal? KISS principle rules, http://en.wikipedia.org/wiki/KISS_principle. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] Compact Flash..
Ok.. Im curious.. Can I install CentOS on a compact flash card, then have the MySQL on another drive? to have the compact flash like read only for the OS to boot from, then do the swap, mysql,etc from the other drive? How hard would this be to do? Thanks, Ryan Nichols ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Compact Flash..
Hi, On Sun, 2008-06-08 at 16:38 -0500, Ryan Nichols wrote: Ok.. Im curious.. Can I install CentOS on a compact flash card, then have the MySQL on another drive? to have the compact flash like read only for the OS to boot from, then do the swap, mysql,etc from the other drive? How hard would this be to do? Yes, you can (of course). My backupserver boots from CF (only kernel +initrd) and then continues from harddrive. I do not have a howto here but if you search google, you'll probably find a lot of them. Regards, Michel ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Compact Flash hard drives
Garrick Staples wrote: On Wed, Jul 18, 2007 at 05:14:57PM -0700, Robert Moskowitz alleged: Has anyone worked with either the Hitachi or Seagate Compact flash drives in an IDE to CF interface and set the up with EXT3 formatted partitions for use with LVM? I ASSuME that LVM is not for FAT32 formatted drives. LVM doesn't work on top of *any* filesystems. oops. It uses unpartitioned drives or unformatted partitions. I've done this manually with Disk Druid in enough installations I should have not gotten this turned upside down. Once the LV is created, you can put any kind of filesystem you like on it. Well I guess I really should not be trying to puzzle this out while listening and voting on 802.11s proposals... hey! If they are busy debating the best way to beat more throughput out off all this congestion, I kind of fade out; its not about security ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
