Re: [CentOS] ext4 or XFS
On 1/12/11, compdoc wrote: > I didn't bring up experimental software - I thought that's what he was > using. I misread. > > And it worked quite well, except for write speeds. There are some cool > features with zfs. > http://www.redhat.com/rhel/compare/ As it stands, 16/25/100 TB ext/gfs2(HA)/xfs respective max sizes I guess of course, dunno about OCFS/GPFS or afs or gluster and the such.. Season's greetings to all, Regards, Rajagopal ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] Kernel Errors Present
I'm getting this message in my logwatch email notification:
- Kernel Begin
WARNING: Kernel Errors Present
sdb:<3>Buffer I/O error on device sdb, l ...: 2
Time(s)
Buffer I/O error on device sdb, l ...: 12 Time(s)
hde: dma_intr: error=0x84 { DriveStat ...: 12 Time(s)
hde: dma_intr: status=0x51 { DriveReady SeekComplete
Error } ...:
12 Time(s)
-- Kernel End -
It's an old drive I'm using for swap space, /var, and /tmp.
(It's on a PCI IDE controller, that's why it comes up as
hde.)
If I test it for bad sectors using Vivard, there are no bad
sectors found or remapped.
I'm just trying to move a lot of regular disk I/O from my
main drive with the root installtion on it, to a replaceable
spare.
I cannot find which log file these messages are going to.
Nothing in /var/log/dmesg or messages.
Where does logwatch get these messages from?
Kind Regards,
Keith Roberts
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Re: [CentOS] Kernel Errors Present
On Wed, Jan 12, 2011 at 4:45 AM, Keith Roberts wrote: > > It's an old drive I'm using for swap space, /var, and /tmp. > (It's on a PCI IDE controller, that's why it comes up as > hde.) > > If I test it for bad sectors using Vivard, there are no bad > sectors found or remapped. > > I'm just trying to move a lot of regular disk I/O from my > main drive with the root installtion on it, to a replaceable > spare. > > I cannot find which log file these messages are going to. > > Nothing in /var/log/dmesg or messages. > > Where does logwatch get these messages from? > Take a look at your /etc/syslog.conf and /etc/sysconfig/syslog and see where the kernel messages are being logged. There's a klogd service that logs these particular messages.. it's started from the same runscript as syslog (/etc/rc.d/init.d/syslog). ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] replace x86 with x64 system and reuse existing LVM
Thanks for the vgexport/vgimport info. I remember I used vgchange in the past, but I would not have thought about it, anyway. Good safety measure. Thanks! Kai -- Get your web at Conactive Internet Services: http://www.conactive.com ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Kernel Errors Present
Bad sectors get reallocated automatically, so you might not find any with testing. You need to see how many have been reallocated. SMART should already be enabled, so maximize your term window and type: smartctl -a /dev/sdb That will show the reallocated sector count, as well as power on hours, and temps, etc. Do that for each drive. If its attached to a raid controller, you have to take additional steps as found on google. If there are any reallocated sectors, you might want to think about replacing it. I have a customer with a failing drive in a server that causes it to freeze from time to time as it develops new bad sectors. I'm replacing it this weekend... ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] ext4 or XFS
Hey I've been watching the thread on and off. How large in the file system you are trying to share? What will it / they be used? -- Thanks, Gene Brandt SCSA 8625 Carriage Road River Ridge, LA 70123 home 504-737-4295 cell 504-452-3250 Family Web Page | My Web Page | LinkedIn | Facebook | Resumebucket On Tue, 2011-01-11 at 14:19 -0500, Joshua Baker-LePain wrote: > On Tue, 11 Jan 2011 at 11:12am, aurfal...@gmail.com wrote > > > My RAID has a strip size of of 32KB and a block size of 512bytes. > > > > I've usually just done blind XFS formats but would like to tune it for > > smaller files. Of course big/small is relative but in my env, small > > means sub 300MB or so. > > > > What would your XFS tuning params be for such an env? > > It's been a long while since I've done tuned XFS formats. But you also > need to consider how many disks are in the array and what RAID level > you're using. > ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] httpd LDAP auth module
>>I am looking at LDAP module for Apache httpd for authentication. The >>'yum install' gives me 'mod_authz_ldap.i386 0:0.26-9.el5_5.1', whereas >>on Apache documentation site I find mod_authNz_ldap module. Both ^ ^^^ >>modules appear to be different looking at available directives. Any >>clues or suggestions on which module should be used? Where can I find >>documentation for mod_authz_ldap? > >Look inside your httpd.conf file, it will answer that one for you. RHEL's httpd >supports ldap auth as shipped. > > >What I did in my httpd.conf file; /snip Your question was about modules, in your httpd.conf you find a list of _modules_ it loads... That should remove the ambiguity around which documentation to follow. See the line: LoadModule authnz_ldap_module modules/mod_authnz_ldap.so ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Bonding performance question
On Tue, 11 Jan 2011, James Pearson wrote: > You could use xmit_hash_policy=layer2+3 - which just uses MAC and IP > addresses (which you do have more control over) - and see if you can > pick a mix of IP/MAC addresses that would result in all four > interfaces being used (theoretically) - and see if it matches > reality? I semi-apologize for this question, but I don't have a suitably equipped machine-switch combination free for testing, so I can't do empirical testing. I don't see the layer2+3 option listed in the CentOS 5.5 bonding module: # modinfo bonding | egrep 'version|xmit' version:3.4.0 srcversion: 0B48FBAC9285804638A6BE7 parm: xmit_hash_policy:XOR hashing method: 0 for layer 2 (default), 1 for layer 3+4 (charp) Is the layer2+3 option simply undocumented via modinfo or is it not present in the CentOS bonding module? -- Paul Heinlein <> heinl...@madboa.com <> http://www.madboa.com/ ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Bonding performance question
> Is the layer2+3 option simply undocumented via modinfo or is it not > present in the CentOS bonding module? It's docuemnted in the kernel docs rpm, /usr/share/doc/kernel-doc-2.6.18/Documentation/networking/bonding.txt. --- This message and any attachments may contain Cypress (or its subsidiaries) confidential information. If it has been received in error, please advise the sender and immediately delete this message. --- ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] ext4 or XFS
> Hey I've been watching the thread on and off. How large in the file system > you are trying to share? What will it / they be used? http://lists.centos.org/pipermail/centos/2011-January/thread.html http://lists.centos.org/pipermail/centos/2011-January/104184.html ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] ext4 or XFS
On Jan 12, 2011, at 8:19 AM, Gene Brandt wrote: > Hey I've been watching the thread on and off. How large in the file > system you are trying to share? What will it / they be used? Home dirs which are low/medium bandwidth and other low bandwidth data. Basically 3 individual NFS exports. Currently served off an Xserve(s)/Xraid(s) so this new server will be a boost in both reliability, performance and simplicity in terms of management. And the parity calcs for Raid 6 are taking quite some time, almost twice as long as Raid 5, but then again its more robust. I'm not overly concerned with performance as it will be leaps above what we have now. What I require is reliable bulk storage. - aurf ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] RAID configuration suggestion???
On Mon, Jan 10, 2011 at 8:41 PM, mcclnx mcc wrote: > I would like listen to your opinion on follwoing: > > 1. which configuration have better performance? > > 2. put two MD1000 on same PERC 6/E adapter will cause battery life shorter? > > 3. other comment? > > Thanks. 1. Configuration 2 will have better performance under high load. The PERC 6 is 3Gb/s per port. Each external connector has 4 x ports so you get 12Gb/s across all ports. 2. Battery life is just used to keep the PERC cache memory contents during a power failure. Ryan ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] variable raid1 rebuild speed?
I have a 750Gb 3-member software raid1 where 2 partitions are always present and the third is regularly rotated and re-synced (SATA disks in hot-swap bays). The timing of the resync seems to be extremely variable recently, taking anywhere from 3 to 10 hours even if the partition is unmounted and the drives aren't doing anything else and regardless of what I echo into /proc/sys/dev/raid/speed_limit_min or _max. Is there some way to tell if the drives are going bad or speed it up consistently if they aren't? -- Les Mikesell lesmikes...@gmail.com ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] variable raid1 rebuild speed?
Les Mikesell wrote: > I have a 750Gb 3-member software raid1 where 2 partitions are always present and the > third is regularly rotated and re-synced (SATA disks in hot-swap bays). The timing of > the resync seems to be extremely variable recently, taking anywhere from 3 to 10 hours > even if the partition is unmounted and the drives aren't doing anything else and > regardless of what I echo into /proc/sys/dev/raid/speed_limit_min or _max. Is there > some way to tell if the drives are going bad or speed it up consistently if they aren't? Only thing I can think is if there's a lot of activity on the disks, with many, many gigs of files added or deleted. mark ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] variable raid1 rebuild speed?
On 1/12/2011 1:17 PM, m.r...@5-cent.us wrote: > Les Mikesell wrote: >> I have a 750Gb 3-member software raid1 where 2 partitions are always > present and the >> third is regularly rotated and re-synced (SATA disks in hot-swap bays). > The timing of >> the resync seems to be extremely variable recently, taking anywhere from > 3 to 10 hours >> even if the partition is unmounted and the drives aren't doing anything > else and >> regardless of what I echo into /proc/sys/dev/raid/speed_limit_min or > _max. Is there >> some way to tell if the drives are going bad or speed it up consistently > if they aren't? > > Only thing I can think is if there's a lot of activity on the disks, with > many, many gigs of files added or deleted. No, I'd expect the issue with any activity that would keep pulling the heads away from the current track being sync'd - but when it is slow it doesn't speed up even if I unmount the device. -- Les Mikesell lesmikes...@gmail.com ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] variable raid1 rebuild speed?
On Wed, 2011-01-12 at 12:38 -0600, Les Mikesell wrote: > I have a 750Gb 3-member software raid1 where 2 partitions are always > present and the third is regularly rotated and re-synced (SATA disks in > hot-swap bays). The timing of the resync seems to be extremely variable > recently, taking anywhere from 3 to 10 hours even if the partition is > unmounted and the drives aren't doing anything else and regardless of > what I echo into /proc/sys/dev/raid/speed_limit_min or _max. Is there > some way to tell if the drives are going bad or speed it up consistently > if they aren't? echo 10 > /proc/sys/dev/raid/speed_limit_min echo 10 > /proc/sys/dev/raid/speed_limit_max Should equate to around 100MiBs and I suppose bad sectors or punctured block will bring it to a crawl also. Check the disk out with smart. On way to tell is keep a "hdparm" baseline. John ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] create account for Backup Exec 12.5 on Linux [RHEL5 or 4] to perform backup???
We have several LINUX servers with Backup Exec 12.5 client on it. Based on Backup administrator told us when configure backup EXEC client he need "root" password. Also we can NOT change "root" password after configure otherwise backup will failed. Does there has way I can create a account with special group assign to it for Backup EXEC to use? Thanks. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] create account for Backup Exec 12.5 on Linux [RHEL5 or 4] to perform backup???
On Wed, Jan 12, 2011 at 9:27 PM, mcclnx mcc wrote: > We have several LINUX servers with Backup Exec 12.5 client on it. Based on > Backup administrator told us when configure backup EXEC client he need "root" > password. Also we can NOT change "root" password after configure otherwise > backup will failed. > > Does there has way I can create a account with special group assign to it for > Backup EXEC to use? > > Thanks. Hi Try to create an account with UID 0 and try if Backup Exec accept this. Report back if it works. You may also ask this question at the Symantec forums http://www.symantec.com/connect/backup-and-archiving/forums/backup-exec. This software is really crap! cheers Sven ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] create account for Backup Exec 12.5 on Linux [RHEL5 or 4] to perform backup???
Hey you should not have 2 accounts with the same UID. My sincere condolences for having to use this package! -- Thanks, Gene Brandt SCSA 8625 Carriage Road River Ridge, LA 70123 home 504-737-4295 cell 504-452-3250 Family Web Page | My Web Page | LinkedIn | Facebook | Resumebucket On Wed, 2011-01-12 at 21:57 +0100, Sven Aluoor wrote: > On Wed, Jan 12, 2011 at 9:27 PM, mcclnx mcc wrote: > > We have several LINUX servers with Backup Exec 12.5 client on it. Based on > > Backup administrator told us when configure backup EXEC client he need > > "root" password. Also we can NOT change "root" password after configure > > otherwise backup will failed. > > > > Does there has way I can create a account with special group assign to it > > for Backup EXEC to use? > > > > Thanks. > > Hi > > Try to create an account with UID 0 and try if Backup Exec accept > this. Report back if it works. You may also ask this question at the > Symantec forums > http://www.symantec.com/connect/backup-and-archiving/forums/backup-exec. > This software is really crap! > > cheers Sven > ___ > 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] create account for Backup Exec 12.5 on Linux [RHEL5 or 4] to perform backup???
Hi Sven, I like your line "This software is really crap!" I am a victim of this "crap" myself. What do you personally use to backup your boxes, it would be great to know since I am looking for an alternative. >>> Sven Aluoor 1/12/2011 3:57 PM >>> On Wed, Jan 12, 2011 at 9:27 PM, mcclnx mcc wrote: > We have several LINUX servers with Backup Exec 12.5 client on it. Based on > Backup administrator told us when configure backup EXEC client he need "root" > password. Also we can NOT change "root" password after configure otherwise > backup will failed. > > Does there has way I can create a account with special group assign to it for > Backup EXEC to use? > > Thanks. Hi Try to create an account with UID 0 and try if Backup Exec accept this. Report back if it works. You may also ask this question at the Symantec forums http://www.symantec.com/connect/backup-and-archiving/forums/backup-exec. This software is really crap! cheers Sven ___ 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] create account for Backup Exec 12.5 on Linux [RHEL5 or 4] to perform backup???
EMC's Networker (Originally Legato) It can be as simple or as complicated as you want it to be. -- Thanks, Gene Brandt SCSA 8625 Carriage Road River Ridge, LA 70123 home 504-737-4295 cell 504-452-3250 Family Web Page | My Web Page | LinkedIn | Facebook | Resumebucket On Wed, 2011-01-12 at 16:18 -0500, Lisandro Grullon wrote: > Hi Sven, > I like your line "This software is really crap!" I am a victim of this > "crap" myself. What do you personally use to backup your boxes, it > would be great to know since I am looking for an alternative. > > >>> Sven Aluoor 1/12/2011 3:57 PM >>> > On Wed, Jan 12, 2011 at 9:27 PM, mcclnx mcc > wrote: > > We have several LINUX servers with Backup Exec 12.5 client on it. > Based on Backup administrator told us when configure backup EXEC > client he need "root" password. Also we can NOT change "root" > password after configure otherwise backup will failed. > > > > Does there has way I can create a account with special group assign > to it for Backup EXEC to use? > > > > Thanks. > > Hi > > Try to create an account with UID 0 and try if Backup Exec accept > this. Report back if it works. You may also ask this question at the > Symantec forums > http://www.symantec.com/connect/backup-and-archiving/forums/backup-exec. > This software is really crap! > > cheers Sven > ___ > 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 ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] create account for Backup Exec 12.5 on Linux [RHEL5 or 4] to perform backup???
On Wed, Jan 12, 2011 at 3:57 PM, Sven Aluoor wrote: > On Wed, Jan 12, 2011 at 9:27 PM, mcclnx mcc wrote: >> We have several LINUX servers with Backup Exec 12.5 client on it. Based on >> Backup administrator told us when configure backup EXEC client he need >> "root" password. Also we can NOT change "root" password after configure >> otherwise backup will failed. >> >> Does there has way I can create a account with special group assign to it >> for Backup EXEC to use? >> >> Thanks. > > Hi > > Try to create an account with UID 0 and try if Backup Exec accept > this. Report back if it works. You may also ask this question at the > Symantec forums > http://www.symantec.com/connect/backup-and-archiving/forums/backup-exec. > This software is really crap! *NO*. Creating duplicate uid 0 accounts leads to enormous confusion, because the identified owner of files can then be reported, fairly randomly, as the "alternate-root" rather than as "root". If he's pulling this sort of stunt as standard practice, then it's a hint that he doesn't know much about system security or avoiding interference with other software. > cheers Sven Your Backup Exec configuration advisor needs an education in the use of "sudo" or restricted SSH keys to provide restricted access to the necessary commands for Backup Exec. And he most *certainly* does not need a "root password". Sudo or SSH key based access should be plenty, so that you can revoke it relatively safely as needed. Sadly, I'm right now looking at Symantec's notes on configuring this tool for UNIX or Linux at http://www.symantec.com/business/support/index?page=content&id=TECH5428. Any software that says "put your backup servers in /etc/hosts!" and doesn't explain the dangers of this was not written by people with a clue about DNS and should probably be avoided. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] httpd LDAP auth module
On Wed, Jan 12, 2011 at 11:28 AM, Joseph L. Casale wrote: >>>I am looking at LDAP module for Apache httpd for authentication. The >>>'yum install' gives me 'mod_authz_ldap.i386 0:0.26-9.el5_5.1', whereas >>>on Apache documentation site I find mod_authNz_ldap module. Both > > ^ ^^^ > >>>modules appear to be different looking at available directives. Any >>>clues or suggestions on which module should be used? Where can I find >>>documentation for mod_authz_ldap? >> >>Look inside your httpd.conf file, it will answer that one for you. RHEL's >>httpd >>supports ldap auth as shipped. >> >> >>What I did in my httpd.conf file; > > /snip > > Your question was about modules, in your httpd.conf you find a list of > _modules_ > it loads... That should remove the ambiguity around which documentation to > follow. > > See the line: > LoadModule authnz_ldap_module modules/mod_authnz_ldap.so Except that these are often in /etc/httpd/conf.d/[service].conf. This is certainly the case for mod_dav_svn and mod_perl and numerous other setups. Don't edit /etc/httpd/conf/httpd.conf directly if you can safely avoid it: work in the module-specific configurations files, which makes the configurations a lot more, well, modular. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] create account for Backup Exec 12.5 on Linux [RHEL5 or 4] to perform backup???
On Wed, Jan 12, 2011 at 4:18 PM, Lisandro Grullon wrote: > Hi Sven, > I like your line "This software is really crap!" I am a victim of this > "crap" myself. What do you personally use to backup your boxes, it would be > great to know since I am looking for an alternative. The last time I was given a choice, I used rsnapshot to back up to cheap, live disks with snapshots for NFS based file recovery, and Amanda to back up last snapshots to tape. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] create account for Backup Exec 12.5 on Linux [RHEL5 or 4] to perform backup???
Nico Kadel-Garcia wrote: > On Wed, Jan 12, 2011 at 3:57 PM, Sven Aluoor wrote: >> On Wed, Jan 12, 2011 at 9:27 PM, mcclnx mcc wrote: >>> We have several LINUX servers with Backup Exec 12.5 client on it. >>> Based on Backup administrator told us when configure backup EXEC >>> client he need "root" password. Also we can NOT change "root" password >>> after configure otherwise backup will failed. >>> >>> Does there has way I can create a account with special group assign to >>> it for Backup EXEC to use? > Your Backup Exec configuration advisor needs an education in the use > of "sudo" or restricted SSH keys to provide restricted access to the > necessary commands for Backup Exec. And he most *certainly* does not > need a "root password". Sudo or SSH key based access should be plenty, > so that you can revoke it relatively safely as needed. Yeah, that's probably your best bet. You can add entries to sudo - maybe create an admin, or backup, account, who can can use sudo *only* to run the backup command. mark ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Kernel Errors Present
On Wed, 12 Jan 2011, compdoc wrote:
> To: 'CentOS mailing list'
> From: compdoc
> Subject: Re: [CentOS] Kernel Errors Present
>
> Bad sectors get reallocated automatically, so you might
> not find any with testing. You need to see how many have
> been reallocated.
Vivard disk diagnostic tool lists any sector read
erros, and a count of remapped sectors, if there are any
remapped.
> SMART should already be enabled, so maximize your term
> window and type:
>
> smartctl -a /dev/sdb
>
> That will show the reallocated sector count, as well as
> power on hours, and temps, etc. Do that for each drive.
SMART Attributes Data Structure revision number: 16
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE
UPDATED WHEN_FAILED RAW_VALUE
1 Raw_Read_Error_Rate 0x000b 200 200 051
Pre-fail Always - 0
3 Spin_Up_Time0x0007 093 090 021
Pre-fail Always - 2741
4 Start_Stop_Count0x0032 099 099 040
Old_age Always - 1611
5 Reallocated_Sector_Ct 0x0033 200 200 140
Pre-fail Always - 0
7 Seek_Error_Rate 0x000b 200 200 051
Pre-fail Always - 0
No re-allocated sectors found.
> If its attached to a raid controller, you have to take
> additional steps as found on google.
No it's a standard IDE controller.
Looking in /proc/ide/ide2/hde/settings I find this:
namevalue min max
mode
- --- ---
pio_modewrite-only 0 255
w
using_dma 1 0 1
rw
wcache 1 0 1
rw
I have tried to turn DMA off for this drive, using the
libata.dma=0 kernel boot parameter.
But it's still coming up as using_dma 1.
If I can turn DMA off for this drive, that might get rid of
the DMA error messages.
hde: dma_intr: error=0x84 { DriveStat ...: 12 Time(s)
hde: dma_intr: status=0x51 { DriveReady SeekComplete
Kind Regards,
Keith Roberts
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Re: [CentOS] Kernel Errors Present...
Keith Roberts wrote: > On Wed, 12 Jan 2011, compdoc wrote: > >> To: 'CentOS mailing list' >> From: compdoc >> Subject: Re: [CentOS] Kernel Errors Present >> >> Bad sectors get reallocated automatically, so you might >> not find any with testing. You need to see how many have >> been reallocated. Maybe, but I'd fsck -C -c /dev/ ^^ - check for bad blocks, put them in the table mark ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] create account for Backup Exec 12.5 on Linux [RHEL5 or 4] to perform backup???
On 1/12/2011 3:27 PM, Nico Kadel-Garcia wrote: > On Wed, Jan 12, 2011 at 4:18 PM, Lisandro Grullon > wrote: >> Hi Sven, >> I like your line "This software is really crap!" I am a victim of this >> "crap" myself. What do you personally use to backup your boxes, it would be >> great to know since I am looking for an alternative. > > The last time I was given a choice, I used rsnapshot to back up to > cheap, live disks with snapshots for NFS based file recovery, and > Amanda to back up last snapshots to tape. Backuppc is good for online backups - it uses compression and pooling to hold much more history than you'd expect for the space. It can also copy these off to tape or archive media as tar images but that's sort of an afterthought. -- Les Mikesell lesmikes...@gmail.com ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Kernel Errors Present...
On Wed, 12 Jan 2011, m.r...@5-cent.us wrote: > To: CentOS mailing list > From: m.r...@5-cent.us > Subject: Re: [CentOS] Kernel Errors Present... > > Keith Roberts wrote: >> On Wed, 12 Jan 2011, compdoc wrote: >> >>> To: 'CentOS mailing list' >>> From: compdoc >>> Subject: Re: [CentOS] Kernel Errors Present >>> >>> Bad sectors get reallocated automatically, so you might >>> not find any with testing. You need to see how many have >>> been reallocated. > > Maybe, but I'd fsck -C -c /dev/ > ^^ - check for bad blocks, put them in the table I could do that soon But I don't want to use DMA on this drive (/dev/hde) anyway. In the BIOS I turn DMA off for /dev/hda and /dev/hdc, but they still show up in /proc/ide/.../settings as using_dma 1. So is the kernel ignoring the BIOS DMA settings? 32-bit transfer mode is on in the BIOS though. Keith - Websites: http://www.karsites.net http://www.php-debuggers.net http://www.raised-from-the-dead.org.uk All email addresses are challenge-response protected with TMDA [http://tmda.net] - ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Kernel Errors Present...
> In the BIOS I turn DMA off for /dev/hda and /dev/hdc, > but they still show up in /proc/ide/.../settings as > using_dma 1. say HUH?IDE PIO modes are like 3-7 MBytes/sec and require 100% CPU utilization during the transfer phase. why in dogs name would you be doing this in 2011 ? ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Kernel Errors Present...
What model is the drive? ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] create account for Backup Exec 12.5 on Linux [RHEL5 or 4] to perform backup???
I have liked EMC Retrospect since way back when I was a Mac user. (been a lot of years) I and one customer are using the Windows version, and it's great. However, I don't think there's a linux version of the program, and it now seems to be a Roxio Product. I worry about pricing on EMC Networker - it seems you to have to contact EMC or one of their vendors. Provantage has some modules for it, but I have no idea what I would need to get to back up windows and nix guests. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] create account for Backup Exec 12.5 on Linux [RHEL5 or 4] to perform backup???
Thank you for that Nico. >>> Nico Kadel-Garcia 01/12/11 4:27 PM >>> On Wed, Jan 12, 2011 at 4:18 PM, Lisandro Grullon wrote: > Hi Sven, > I like your line "This software is really crap!" I am a victim of this > "crap" myself. What do you personally use to backup your boxes, it would be > great to know since I am looking for an alternative. The last time I was given a choice, I used rsnapshot to back up to cheap, live disks with snapshots for NFS based file recovery, and Amanda to back up last snapshots to tape. ___ 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] Kernel Errors Present...
On Wed, 12 Jan 2011, compdoc wrote: > What model is the drive? === START OF INFORMATION SECTION === Model Family: Western Digital Caviar family Device Model: WDC WD400BB-00GFA0 Serial Number:WD-WMAKA1241735 Firmware Version: 09.01B09 User Capacity:40,020,664,320 bytes Device is:In smartctl database [for details use: -P show] ATA Version is: 5 ATA Standard is: Exact ATA specification draft version not indicated Local Time is:Wed Jan 12 22:44:01 2011 GMT SMART support is: Available - device has SMART capability. SMART support is: Enabled Keith - Websites: http://www.karsites.net http://www.php-debuggers.net http://www.raised-from-the-dead.org.uk All email addresses are challenge-response protected with TMDA [http://tmda.net] - ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Kernel Errors Present...
On Wed, 12 Jan 2011, John R Pierce wrote: > To: centos@centos.org > From: John R Pierce > Subject: Re: [CentOS] Kernel Errors Present... > > >> In the BIOS I turn DMA off for /dev/hda and /dev/hdc, >> but they still show up in /proc/ide/.../settings as >> using_dma 1. > > > say HUH?IDE PIO modes are like 3-7 MBytes/sec and require 100% CPU > utilization during the transfer phase. why in dogs name would you be > doing this in 2011 ? I'm only using 40 wire IDE cables, and from past experience I don't trust DMA 100% I'd rather transfer data slower with hopefully more stability. I will build a new machine at some time, using SATA and possibly PCI express. But this will have to do for now :) Keith - Websites: http://www.karsites.net http://www.php-debuggers.net http://www.raised-from-the-dead.org.uk All email addresses are challenge-response protected with TMDA [http://tmda.net] - ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Kernel Errors Present...
On 01/12/11 2:47 PM, Keith Roberts wrote: > I'm only using 40 wire IDE cables, and from past experience > I don't trust DMA 100% 40 wire supports DMA modes up to Ultra/DMA 33 (as in 33Mbyte/sec). UDMA 66+ require the 80 wire shielded cables (and both drives on the same cable have to support it). The only time I've had any problems with DMA, something has been very badly broken with the hardware. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Kernel Errors Present...
Gosh that's an old drive. Seems its capable of some speed, tho: Data transfer rate (buffer to host) Mode 5 Ultra ATA4 100 MB/s Mode 4 Ultra ATA4 66.6 MB/s Mode 2 Ultra ATA4 33.3 MB/s Mode 2 DMA4 16.6 MB/s Mode 4 PIO4 16.6 MB/s John Pierce is right - if you don't use a dma mode, the cpu has a lot more work. SMART says your drive is good, but it still could be failing. Or the cabling is wrong - very common if there's both a master and slave present, but even possible if only one drive is attached. The ide port on the mainboard could be failing as well. Also, but not as likely - how the drive is defined in the bios, or how other things are set in there. (if you have always used the defaults, then nothing to worry about) ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Kernel Errors Present...
Use the modern, 80 wire cables, and trust the technology - it's come a long way. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] thumbnail cache
This webpage tells me that you can set the thumbnail cache size using gconf-editor: http://ubuntuforums.org/showthread.php?t=1481182 However, the gconf-editor that I have on Centos 5.5 doesn't have that setting. Is it not possible to set this value with Centos 5.5? -- MELVILLE THEATRE ~ Melville Sask ~ www.melvilletheatre.com www.creekfm.com - FIFTY THOUSAND WATTS of POW WOW POWER! ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] httpd LDAP auth module
>>>Look inside your httpd.conf file, it will answer that one for you. RHEL's >>>httpd >>>supports ldap auth as shipped. /snip >> See the line: >> LoadModule authnz_ldap_module modules/mod_authnz_ldap.so > >Except that these are often in /etc/httpd/conf.d/[service].conf. This >is certainly the case for mod_dav_svn and mod_perl and numerous other >setups. As I said, it's in the file I directed him to because that is where the srpm was configured to put it. Anything you refer to you would be a module added after the fact. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] parsing an e-mail with perl
Dear List, I need to be able to pull off attachments from e-mails on the fly and then demime them and print them. I have been studying MIME::Tools but was hoping someone could point me to a script example of something I could use. Any help would be appreciated - Thanks! -- Greg Ennis ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] parsing an e-mail with perl
> I need to be able to pull off attachments from e-mails on the fly and
> then demime them and print them. I have been studying MIME::Tools but
> was hoping someone could point me to a script example of something I
> could use.
Here's a little sniplet from a perl script I have to filter some attachement
from mail :
use MIME::Tools;
use MIME::Parser;
use MIME::Decoder::QuotedPrint;
use MIME::Decoder::Base64;
use MIME::Decoder::Binary;
use MIME::Decoder::Gzip64;
use MIME::Decoder::NBit;
use MIME::Decoder::UU;
use MIME::Words qw(:all);
my $parser = new MIME::Parser;
$parser->output_to_core(0);
$parser->extract_nested_messages(0);
$parser->tmp_to_core(1);
$parser->tmp_recycling(1);
$parser->use_inner_files(0);
$parser->filer->ignore_filename(1);
my @message = ;
my $entity = $parser->parse_data(\...@message);
foreach my $part ($_[0]->parts)
{
print $part->mime_type();
}
Thaere are other functins to the part object, my script simply pushes the
part into a new array depending of the mime_type..
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Re: [CentOS] Kernel Errors Present
Hi Keith
(2011/01/13 6:39), Keith Roberts wrote:
>hde: dma_intr: error=0x84 { DriveStat ...: 12 Time(s)
>hde: dma_intr: status=0x51 { DriveReady SeekComplete
The first error is data transmitting error. Your HARD DRIVE have
a data transmitting error or malfunction on transmitting path without disk.
(The trouble is on memory, chip set, IDE-cable, HDD-Circuit(DMA). HDD dish is
OK.)
DMA I/O was designed with 2 separated unit (control-unit and data-unit)
The trouble is on control-unit part.
Vivard/smartctl only explains your data-unit is OK.
>>dma_intr: error=0x84 { DriveStatusError BadCRC }
>>http://www.mail-archive.com/debian-user@lists.debian.org/msg128610.html
-Tsuyoshi.
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