<div dir="ltr"><div>haha duly noted Mark</div><div><br></div></div><br><div class="gmail_quote"><div class="gmail_attr" dir="ltr">On Mon, Feb 4, 2019 at 6:57 PM Fairlight via Filepro-list <<a href="mailto:filepro-list@lists.celestial.com">filepro-list@lists.celestial.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;padding-left:1ex;border-left-color:rgb(204,204,204);border-left-width:1px;border-left-style:solid">All I can say is that I would never willingly use ext4. It has issues.<br>
Past everything I've said thus far on the matter, you're getting into paid<br>
"re-research the comparisons of merits and detractors between valid current<br>
filesystems" territory, which is well beyond the scope of this list.<br>
<br>
You can totally do whatever you like with it. I'm not being paid to ensure<br>
it works until OS End-of-Life and possibly beyond, so it's not really my<br>
problem. It's your box to enjoy or suffer through as you see fit. ;)<br>
<br>
m-><br>
<br>
<br>
On Mon, Feb 04, 2019 at 06:44:02PM -0500, <a href="mailto:scooter6@gmail.com" target="_blank">scooter6@gmail.com</a> thus spoke:<br>
> Mark,<br>
> So this really would only apply to the /u filesystem (that is 3.9TB)<br>
> where fP and data will be<br>
> The others can remain ext4 with no issues ? Or just best to convert all<br>
> ext4 file systems to XFS?<br>
> <br>
> On Mon, Feb 4, 2019 at 6:10 PM Fairlight via Filepro-list<br>
> <[1]<a href="mailto:filepro-list@lists.celestial.com" target="_blank">filepro-list@lists.celestial.com</a>> wrote:<br>
> <br>
> It really depends whether you're using 64-bit or 32-bit filePro<br>
> binaries.<br>
> If you're using 64-bit, you're fine in any event. If you're using<br>
> 32-bit,<br>
> I suspect you may run into inode number issues. I'd have to look<br>
> up how<br>
> ext4 handles its internal structure, and see if it's BTree+ as well<br>
> in<br>
> order to say definitively. Or do some testing.<br>
> I would -never- willingly recommend ext4. The problem with ext4 is<br>
> that it<br>
> has a static inode table. If you create a filesystem of 'x' size<br>
> (say<br>
> 100GB), by default it allocates 'z' inodes. It's a steady default<br>
> relationship between filesystem size and inode count. Two problems<br>
> with<br>
> this being static:<br>
> 1) If you use heavily heirarchical filesystem structures for storage<br>
> of<br>
> data (think postfix-type queues or storage in nested directories),<br>
> you will<br>
> probably exhaust inode space well before you exhaust disk space.Â<br>
> You can<br>
> read 50% disk available, but be out of inodes and will be unable to<br>
> write<br>
> any new files. You can add data to existing files, but once you<br>
> hit the<br>
> inode limit, you're done adding files or directories. Which might<br>
> not be<br>
> so bad, if not for the fact that:<br>
> 2) The inode table is so static that it is immutable, post-mkfs.Â<br>
> It<br>
> cannot be retuned by any means. If you allocate 1TB worth of disk<br>
> to the<br>
> filesystem, then later add 2TB (which it will happily let you do,<br>
> and<br>
> which obviously LVM2 supports with ease), you will -still- only have<br>
> the<br>
> same quantity of inodes to use under 3TB that you originally had<br>
> under<br>
> 1TB. There is no way around this, short of syncing the entire lot<br>
> to<br>
> another drive, redoing the whole filesystem from scratch with mkfs,<br>
> and<br>
> then syncing everything back. ext4 itself has no inherent<br>
> accomodation for<br>
> increasing the inode table size. None.<br>
> Do yourself a huge favour, and rework it using XFS if you care about<br>
> maintaining scalability.<br>
> m-><br>
> On Mon, Feb 04, 2019 at 03:08:24PM -0500, [2]<a href="mailto:scooter6@gmail.com" target="_blank">scooter6@gmail.com</a> thus<br>
> spoke:<br>
> >Â Â Just to add - I installed CentOS 7 on RAID 10 hardware RAID<br>
> on the new<br>
> >Â Â Dell PowerEdge<br>
> >Â Â I have the OS installed at this point and this is as far as<br>
> I've gotten<br>
> >Â Â The server has four (4) 2TB NLSAS hot plug hard drives<br>
> >Â Â I installed all filesystems as ext4 -- I allowed Centos to<br>
> partition<br>
> >Â Â automatically this leaves with a 3.9TB /u file system that is<br>
> ext4<br>
> >Â Â Would you recommend a different filesystem?<br>
> ><br>
> >Â Â On Mon, Feb 4, 2019 at 2:36 PM Scott Walker via Filepro-list<br>
> >Â Â <[1][3]<a href="mailto:filepro-list@lists.celestial.com" target="_blank">filepro-list@lists.celestial.com</a>> wrote:<br>
> ><br>
> >Â Â Â Mark,<br>
> >Â Â Â Brian White was nice enough to help us out with this last<br>
> year.<br>
> >Â Â Â This is from my notes:<br>
> >Â Â Â CentOS Version 7ÃÂ Installation Issues<br>
> >Â Â Â<br>
> --------------------------------------------------------------------<br>
> >Â Â Â --------<br>
> >Â Â Â<br>
> --------------------------------------------------------------<br>
> >Â Â Â You must have libtermcap.so.2 installed!<br>
> >Â Â Â Ã On CentOS 7 you mustÃÂ first install libc.so.6<br>
> >Â Â Â ÃÂ ÃÂ ÃÂ ÃÂ yum install libc.so.6<br>
> >Â Â Â Then install:<br>
> >Â Â Â ÃÂ ÃÂ ÃÂ ÃÂ rpm -ivh<br>
> >Â Â Â compat-libtermcap-2.0.8-50flt.el7.centos.i686.rpm<br>
> >Â Â Â The above file was provided by Brian.ÃÂ I can email you a<br>
> copy if<br>
> >Â Â Â desired.<br>
> >Â Â Â Regards,<br>
> >Â Â Â Scott Walker<br>
> >Â Â Â [2][4]<a href="mailto:scott.walker@ramsystemscorp.com" target="_blank">scott.walker@ramsystemscorp.com</a><br>
> >Â Â Â -----Original Message-----<br>
> >Â Â Â From: Filepro-list<br>
> >Â Â Â<br>
> [mailto:[3]filepro-list-bounces+scottwalker=ramsystemscorp.com@lists<br>
> >Â Â Â .celestial.<br>
> >Â Â Â com] On Behalf Of Fairlight via Filepro-list<br>
> >Â Â Â Sent: Monday, February 4, 2019 1:58 PM<br>
> >Â Â Â To: [4][5]<a href="mailto:filepro-list@lists.celestial.com" target="_blank">filepro-list@lists.celestial.com</a><br>
> >Â Â Â Subject: Re: New server migration<br>
> >Â Â Â My previous comments about XFS were for 32-bit<br>
> binaries.ÃÂ The bit<br>
> >Â Â Â depth is<br>
> >Â Â Â important, as even 6.0.0 comes in both 32-bit and<br>
> 64-bit.ÃÂ If<br>
> >Â Â Â you're running<br>
> >Â Â Â 64-bit, you can use inode64 on any filesystem size, and it<br>
> shouldn't<br>
> >Â Â Â cause<br>
> >Â Â Â issues.<br>
> >Â Â Â If you're running 64-bit binaries, compat-libtermcap may<br>
> still be an<br>
> >Â Â Â issue<br>
> >Â Â Â (probably is).ÃÂ I'd have to revisit that directly to<br>
> confirm or<br>
> >Â Â Â deny.ÃÂ I<br>
> >Â Â Â remember that the i686 architecture build target did not<br>
> exist in<br>
> >Â Â Â the spec<br>
> >Â Â Â file I got from the official SRPM, but that's only<br>
> necessary if you<br>
> >Â Â Â run<br>
> >Â Â Â 32-bit binaries.ÃÂ The package itself likely still needs<br>
> to be built<br>
> >Â Â Â properly, so you're not relying on what I remember as<br>
> being the<br>
> >Â Â Â default<br>
> >Â Â Â broken configuration.<br>
> >Â Â Â m-><br>
> >Â Â Â On Mon, Feb 04, 2019 at 11:02:34AM -0500, scooter6--- via<br>
> >Â Â Â Filepro-list thus<br>
> >Â Â Â spoke:<br>
> >Â Â Â > To clarify, this is with fP 5.6.10R4<br>
> >Â Â Â ><br>
> >Â Â Â ><br>
> >Â Â Â ><br>
> >Â Â Â > On Mon, Feb 4, 2019 at 10:22 AM [5][6]<a href="mailto:scooter6@gmail.com" target="_blank">scooter6@gmail.com</a><br>
> >Â Â Â > <[6][7]<a href="mailto:scooter6@gmail.com" target="_blank">scooter6@gmail.com</a>><br>
> >Â Â Â > wrote:<br>
> >Â Â Â ><br>
> >Â Â Â > > Just purchased our new Dell PowerEdge server that I<br>
> have<br>
> >Â Â Â installed<br>
> >Â Â Â > > CentOS<br>
> >Â Â Â > > 7 on<br>
> >Â Â Â > ><br>
> >Â Â Â > > Am migrating from older Dell PowerEdge that has Centos<br>
> 5.10 on<br>
> >Â Â Â it<br>
> >Â Â Â > ><br>
> >Â Â Â > > Is there a 'recipe book' anyone may have on steps to<br>
> migrate all<br>
> >Â Â Â data<br>
> >Â Â Â etc?<br>
> >Â Â Â > > Can a simple copy of the fp directories etc do the<br>
> trick or does<br>
> >Â Â Â the<br>
> >Â Â Â > > new server need to go through fpinstall ?<br>
> >Â Â Â > ><br>
> >Â Â Â > > I know there are significant changes in CentOS from<br>
> 5.10 to 6<br>
> >Â Â Â and<br>
> >Â Â Â > > then to<br>
> >Â Â Â > > 7 but in what I've read I don't think there too much<br>
> of a<br>
> >Â Â Â concern<br>
> >Â Â Â > > for purposes of what we do here<br>
> >Â Â Â > ><br>
> >Â Â Â > > Curious if anyone has done this similar migration and<br>
> what to<br>
> >Â Â Â watch<br>
> >Â Â Â > > out for or best steps in order to make this as<br>
> seamless as<br>
> >Â Â Â possible<br>
> >Â Â Â > ><br>
> >Â Â Â > > Thanks for any insight<br>
> >Â Â Â > ><br>
> >Â Â Â > > Scott<br>
> >Â Â Â > > PDM<br>
> >Â Â Â > ><br>
> >Â Â Â > -------------- next part -------------- An HTML<br>
> attachment was<br>
> >Â Â Â > scrubbed...<br>
> >Â Â Â > URL:<br>
> >Â Â Â ><br>
> >Â Â Â<br>
> <[7][8]<a href="http://mailman.celestial.com/pipermail/filepro-list/attachmen" target="_blank" rel="noreferrer">http://mailman.celestial.com/pipermail/filepro-list/attachmen</a><br>
> ts/<br>
> >Â Â Â 20190<br>
> >Â Â Â > 204/1b6775da/attachment.html><br>
> >Â Â Â > _______________________________________________<br>
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> >Â Â Â ><br>
> >Â Â Â --<br>
> >Â Â Â Audio panton, cogito singularis.<br>
> >Â Â Â _______________________________________________<br>
> >Â Â Â Filepro-list mailing list<br>
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> ><br>
> > References<br>
> ><br>
> >Â Â 1. mailto:[15]<a href="mailto:filepro-list@lists.celestial.com" target="_blank">filepro-list@lists.celestial.com</a><br>
> >Â Â 2. mailto:[16]<a href="mailto:scott.walker@ramsystemscorp.com" target="_blank">scott.walker@ramsystemscorp.com</a><br>
> >Â Â 3. mailto:[17]filepro-list-bounces%2Bscottwalker<br>
> >Â Â 4. mailto:[18]<a href="mailto:filepro-list@lists.celestial.com" target="_blank">filepro-list@lists.celestial.com</a><br>
> >Â Â 5. mailto:[19]<a href="mailto:scooter6@gmail.com" target="_blank">scooter6@gmail.com</a><br>
> >Â Â 6. mailto:[20]<a href="mailto:scooter6@gmail.com" target="_blank">scooter6@gmail.com</a><br>
> >Â Â 7.<br>
> [21]<a href="http://mailman.celestial.com/pipermail/filepro-list/attachments/" target="_blank" rel="noreferrer">http://mailman.celestial.com/pipermail/filepro-list/attachments/</a><br>
> 20190<br>
> >Â Â 8. mailto:[22]<a href="mailto:Filepro-list@lists.celestial.com" target="_blank">Filepro-list@lists.celestial.com</a><br>
> >Â Â 9.<br>
> [23]<a href="http://mailman.celestial.com/mailman/listinfo/filepro-list" target="_blank" rel="noreferrer">http://mailman.celestial.com/mailman/listinfo/filepro-list</a><br>
> >Â Â 10. mailto:[24]<a href="mailto:Filepro-list@lists.celestial.com" target="_blank">Filepro-list@lists.celestial.com</a><br>
> >Â Â 11.<br>
> [25]<a href="http://mailman.celestial.com/mailman/listinfo/filepro-list" target="_blank" rel="noreferrer">http://mailman.celestial.com/mailman/listinfo/filepro-list</a><br>
> >Â Â 12. mailto:[26]<a href="mailto:Filepro-list@lists.celestial.com" target="_blank">Filepro-list@lists.celestial.com</a><br>
> >Â Â 13.<br>
> [27]<a href="http://mailman.celestial.com/mailman/listinfo/filepro-list" target="_blank" rel="noreferrer">http://mailman.celestial.com/mailman/listinfo/filepro-list</a><br>
> --<br>
> Audio panton, cogito singularis.<br>
> _______________________________________________<br>
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> <br>
> References<br>
> <br>
> 1. mailto:<a href="mailto:filepro-list@lists.celestial.com" target="_blank">filepro-list@lists.celestial.com</a><br>
> 2. mailto:<a href="mailto:scooter6@gmail.com" target="_blank">scooter6@gmail.com</a><br>
> 3. mailto:<a href="mailto:filepro-list@lists.celestial.com" target="_blank">filepro-list@lists.celestial.com</a><br>
> 4. mailto:<a href="mailto:scott.walker@ramsystemscorp.com" target="_blank">scott.walker@ramsystemscorp.com</a><br>
> 5. mailto:<a href="mailto:filepro-list@lists.celestial.com" target="_blank">filepro-list@lists.celestial.com</a><br>
> 6. mailto:<a href="mailto:scooter6@gmail.com" target="_blank">scooter6@gmail.com</a><br>
> 7. mailto:<a href="mailto:scooter6@gmail.com" target="_blank">scooter6@gmail.com</a><br>
> 8. <a href="http://mailman.celestial.com/pipermail/filepro-list/attachments/" target="_blank" rel="noreferrer">http://mailman.celestial.com/pipermail/filepro-list/attachments/</a><br>
> 9. mailto:<a href="mailto:Filepro-list@lists.celestial.com" target="_blank">Filepro-list@lists.celestial.com</a><br>
> 10. <a href="http://mailman.celestial.com/mailman/listinfo/filepro-list" target="_blank" rel="noreferrer">http://mailman.celestial.com/mailman/listinfo/filepro-list</a><br>
> 11. mailto:<a href="mailto:Filepro-list@lists.celestial.com" target="_blank">Filepro-list@lists.celestial.com</a><br>
> 12. <a href="http://mailman.celestial.com/mailman/listinfo/filepro-list" target="_blank" rel="noreferrer">http://mailman.celestial.com/mailman/listinfo/filepro-list</a><br>
> 13. mailto:<a href="mailto:Filepro-list@lists.celestial.com" target="_blank">Filepro-list@lists.celestial.com</a><br>
> 14. <a href="http://mailman.celestial.com/mailman/listinfo/filepro-list" target="_blank" rel="noreferrer">http://mailman.celestial.com/mailman/listinfo/filepro-list</a><br>
> 15. mailto:<a href="mailto:filepro-list@lists.celestial.com" target="_blank">filepro-list@lists.celestial.com</a><br>
> 16. mailto:<a href="mailto:scott.walker@ramsystemscorp.com" target="_blank">scott.walker@ramsystemscorp.com</a><br>
> 17. mailto:<a href="mailto:filepro-list-bounces%25252Bscottwalker" target="_blank">filepro-list-bounces%252Bscottwalker</a><br>
> 18. mailto:<a href="mailto:filepro-list@lists.celestial.com" target="_blank">filepro-list@lists.celestial.com</a><br>
> 19. mailto:<a href="mailto:scooter6@gmail.com" target="_blank">scooter6@gmail.com</a><br>
> 20. mailto:<a href="mailto:scooter6@gmail.com" target="_blank">scooter6@gmail.com</a><br>
> 21. <a href="http://mailman.celestial.com/pipermail/filepro-list/attachments/20190" target="_blank" rel="noreferrer">http://mailman.celestial.com/pipermail/filepro-list/attachments/20190</a><br>
> 22. mailto:<a href="mailto:Filepro-list@lists.celestial.com" target="_blank">Filepro-list@lists.celestial.com</a><br>
> 23. <a href="http://mailman.celestial.com/mailman/listinfo/filepro-list" target="_blank" rel="noreferrer">http://mailman.celestial.com/mailman/listinfo/filepro-list</a><br>
> 24. mailto:<a href="mailto:Filepro-list@lists.celestial.com" target="_blank">Filepro-list@lists.celestial.com</a><br>
> 25. <a href="http://mailman.celestial.com/mailman/listinfo/filepro-list" target="_blank" rel="noreferrer">http://mailman.celestial.com/mailman/listinfo/filepro-list</a><br>
> 26. mailto:<a href="mailto:Filepro-list@lists.celestial.com" target="_blank">Filepro-list@lists.celestial.com</a><br>
> 27. <a href="http://mailman.celestial.com/mailman/listinfo/filepro-list" target="_blank" rel="noreferrer">http://mailman.celestial.com/mailman/listinfo/filepro-list</a><br>
> 28. mailto:<a href="mailto:Filepro-list@lists.celestial.com" target="_blank">Filepro-list@lists.celestial.com</a><br>
> 29. <a href="http://mailman.celestial.com/mailman/listinfo/filepro-list" target="_blank" rel="noreferrer">http://mailman.celestial.com/mailman/listinfo/filepro-list</a><br>
<br>
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Audio panton, cogito singularis.<br>
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