John Barbee wrote:
>
> Hi,
>
> I've now been charged researching for a rather involved project to
> create a commerce site. After a short discussion, everyone on the team
> seems to agree that linux and apache would be the right path to take.
> However, there are many components to what we need to do and we'd like
> some comments to make sure we avoid buying into a solution that doesn't
> work.
>
> This project is involved around four components: linux, apache, a
> databse and a scripting environment.
>
> For a database, we are pretty open and are trying to decide
> between Oracle, Sybase, Informix and MySQL. At the moment, the only
> requirement for a database is that is support replication model between
> machines. Redundancy is really important to us. The corporate database
> ports seem rather young. Have these been successfully integrate with the
> linux environment yet?
>
Have tou tried Solid (www.solid.com)
We are using this DB in the medical field since 2 years both on Linux
and since one year on HP-UX 9.0
No problem to report.
> For a scripting environment we're trying to decide between
> perl+mod_perl+perlembed and php. The list of sites that use either is
> quite extensive. Has anyone had any success or failures with either?
>
Can't help you on this issue. We have our hown SQL Transaction environment.
> More importantly, has anyone had any success or failures with any
> one of the database+script environment combinations made up of elements
> from the sets listed above? Any experience tidbits would be greatly
> helpful and appreciated.
>
> As far as the operating system is concerned we're hoping we could
> get some suggestions for increasing redundancy. Optimally there would be
> some load balancing architecture which would also take care of redundancy
> of service. Hopefully, we'd also have disk redundancy in the form of
> anything from RAID-1 to a "SCSI switch"-like device to fiber channel. I
> know RAID1,4,5 is supported but is there anything else out there? Does
> linux have any equivalent to Logical Volume Manager of HP-UX where you can
> grow filesystem sizes as necessary?
>
We are using RAID-5 file systems of 95GB each using DPT controllers and
RAID-5 file systems of 8GB each using Linux internal RAID facility.
On this las point, we use BusLogic 958 controllers. Works fine and fast.
> In terms of performance we'd like to set up large RAMdisks. Is
> this just as simple as compiling MFS into the kernel and mounting devices
> as MFS filesystems? Is there a limit to the size of an MFS? Is there
> anything special I need to know about linux's implementation of MFS?
>
Nothing at all. It works like a disk file system. But when having correctly
configured the files all over the disks, you should not need MFS. Rather,
install as may RAM you could. One of our servers is running with
512MB or RAM and two Pentium 366.
> Lastly, we were wondering what people are using for backups. We
> were hoping there is something more sophisticated than nightly dumps.
>
DLT Tapes Robot used in sequential mode for large backups once per week
and DB journal logging daily. Keep updates files other than the ones
managed by the DB on a daily backup sequence.
> Any response would be greatly appreciated. Please reply directly
> to me in addition to the list as I am not subscribed.
>
> TIA
> john.
>
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