[Linux] Ram Disks
Peter Capazzi
linux@flux.org
Tue, 15 Jan 2008 10:40:25 -0500
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Hello,
Is anyone familiar with Ram Disks?
=20
We have a 3rd party application that apparently needs to read from disk
for every record as it cycles through anywhere to 50-100 million
records. We're looking to place this applications resources into a ram
disk insead.=20
=20
I've read through the only tutorial that I beleive applies to what I'm
trying to do and I'm not sure I understand it completely:
http://www.vanemery.com/Linux/Ramdisk/ramdisk.html
=20
What I have on my system:
RAMDISK driver initialized: 16 RAM disks of 64000K size 1024 blocksize
RAMDISK: Compressed image found at block 0
So I have 16 RAM disks of 64MB each? 1024 MB (1 GB) in total then? The
applications resource files are about 780MB's... can these ram disks be
used as an LVM somehow to get the space for the application? Any other
ideas?=20
=20
=20
=20
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<DIV><FONT face=3DArial size=3D2><SPAN=20
class=3D277192815-15012008>Hello,</SPAN></FONT></DIV>
<DIV><FONT face=3DArial size=3D2><SPAN class=3D277192815-15012008>Is =
anyone familiar=20
with Ram Disks?</SPAN></FONT></DIV>
<DIV><FONT face=3DArial size=3D2><SPAN=20
class=3D277192815-15012008></SPAN></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2><SPAN class=3D277192815-15012008>
<DIV><FONT face=3DArial size=3D2><SPAN class=3D277192815-15012008>We =
have a 3rd party=20
application that apparently needs to read from disk for every record as =
it=20
cycles through anywhere to 50-100 million records. We're looking to =
place this=20
applications resources into a ram disk insead.=20
</SPAN></FONT></DIV></SPAN></FONT></DIV>
<DIV><FONT face=3DArial size=3D2><SPAN=20
class=3D277192815-15012008></SPAN></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2><SPAN class=3D277192815-15012008>I've =
read through=20
the only tutorial that I beleive applies to what I'm trying to do and =
I'm not=20
sure I understand it completely:</SPAN></FONT></DIV>
<DIV><FONT face=3DArial size=3D2><SPAN class=3D277192815-15012008><A=20
href=3D"http://www.vanemery.com/Linux/Ramdisk/ramdisk.html">http://www.va=
nemery.com/Linux/Ramdisk/ramdisk.html</A></SPAN></FONT></DIV>
<DIV><FONT face=3DArial size=3D2><SPAN=20
class=3D277192815-15012008></SPAN></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2><SPAN class=3D277192815-15012008>What I =
have on my=20
system:</SPAN></FONT></DIV>
<DIV><FONT face=3DArial size=3D2><SPAN =
class=3D277192815-15012008>RAMDISK driver=20
initialized: 16 RAM disks of 64000K size 1024 blocksize<BR>RAMDISK: =
Compressed=20
image found at block 0<BR></SPAN></FONT></DIV>
<DIV><FONT face=3DArial size=3D2><SPAN class=3D277192815-15012008>So I =
have 16 RAM=20
disks of 64MB each? 1024 MB (1 GB) in total then? The applications =
resource=20
files are about 780MB's... can these ram disks be used as an LVM somehow =
to get=20
the space for the application? Any other ideas? </SPAN></FONT></DIV>
<DIV><FONT face=3DArial size=3D2><SPAN=20
class=3D277192815-15012008></SPAN></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2><SPAN=20
class=3D277192815-15012008></SPAN></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2><SPAN=20
class=3D277192815-15012008> </DIV></SPAN></FONT></BODY></HTML>
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