Hi,

We have a Sun-Fire running SunOS 5.8. I'd like to set up a RAM disk, or
a file partition that resides in RAM. I want to put an application into
RAM along with its attendant data files, run it for a few cases, and see
what improvement there is by having it reside in memory. How does one
set up a RAM disk?

thanks,
matthew

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Matthew Polder wrote:
quote:

> Hi,
>
> We have a Sun-Fire running SunOS 5.8. I'd like to set up a RAM disk, or
> a file partition that resides in RAM. I want to put an application into
> RAM along with its attendant data files, run it for a few cases, and see
> what improvement there is by having it reside in memory. How does one
> set up a RAM disk?
>
> thanks,
> matthew


Hello

You need SUNWdrvs8 package
It is unsupported, made on the free time of someone from Sun. You can
download it from http://developer.sun.com
search for ramd

If you need a suported solution, check out imperialtech
http://www.imperialtech.com

they sell a very interesting solution of small boxes with RAM and with a
small batery and with a Disk Backend (it's ram, seen by solaris has a
disk and without data corruption in case of reboot) supported by Sun and
VOS (Veritas Oracle and Sun) So, you can even mirror the devices.

Hope this helps

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Matthew Polder wrote:
quote:

> Hi,
>
> We have a Sun-Fire running SunOS 5.8. I'd like to set up a RAM disk, or
> a file partition that resides in RAM. I want to put an application into
> RAM along with its attendant data files, run it for a few cases, and see
> what improvement there is by having it reside in memory. How does one
> set up a RAM disk?
>
> thanks,
> matthew


How is what you want to do different from just using /tmp ?


--
After being targeted with gigabytes of trash by the "SWEN" worm, I have
concluded we must conceal our e-mail address.  Our true address is the
mirror image of what you see before the "@" symbol.  It's a shame such
steps are necessary.          ...Charlie

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CJT wrote:
quote:

>
>
> Matthew Polder wrote:
> 
>
>
> How is what you want to do different from just using /tmp ?
>
>


I don't know what Mat wants to do but, I used this to implement a low
latency proxy server cache.

With iplanet Proxy server, you define the optimal cache size but, the
server can use up to 2 times the defined so, I wanted to get some
control of the Ram usage proxy cache was consuming.

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