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bySirMasterboy ( 872152 ) writes:
I have a DS1010+ 5-bay model and absolutely love it. It's got 10TB in it right now but I may replace the drives with 3TB models eventually. With a dual-core 1.6GHz atom and 1GB DDR2 ram it easily reads and writes at 100+MB/s via a RAID5 array on my simple home gigabit network.
Also the new NAS' that are Intel-based can run most CLI linux servers and programs which is great. You may need to add more RAM if you run lots of heavy servers or have lots of concurrent users but most have spare ram slots.
The best
bysortius_nod ( 1080919 ) writes:
I did have a NAS a while ago, but I got rid of it in favour of building up a linux server. I found that NAS performance is slow at best, abysmal at worst, even with 1gbps networking & a decent controller. Unless you go corporate style you're always going to suffer from speed problems.
Having 3 network cards and enough space for 15 drives makes up for the few hundred extra dollars you pay for a DIY NAS. Plus, a DIY NAS has a lot more flexibility than the consumer grade NAS.
bylucm ( 889690 ) writes:
I did have a NAS a while ago, but I got rid of it in favour of building up a linux server. I found that NAS performance is slow at best, abysmal at worst
I would agree with that. However the best scenario I've tried with a Linux machine is using a software raid (or LVM) on a bunch of disks and then setup a iSCSI target, especially convenient in a virtualized environment. Network cards are cheap so it's easy to add custom multipath.
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bycthulhu11 ( 842924 ) writes:
Reading about Linux's disappointingly lame MD system gave me new respect for Synology's devices, especially for the SOHO environments for which they're suited.
For a larger / business application, ZFS totally rocks, but Oracle has decimated Solaris' visibility, so one is left with no good options.
bylucm ( 889690 ) writes:
Reading about Linux's disappointingly lame MD system gave me new respect for Synology's devices, especially for the SOHO environments for which they're suited.
For a larger / business application, ZFS totally rocks, but Oracle has decimated Solaris' visibility, so one is left with no good options.
I have yet to see a typical scenario where the bottleneck is at the back-end (ie: md). The sluggish part is always at the frontend; the higher you get on the OSI layers, the more you need a robust interface. And at this level, Linux is terrific. Having a custom storage machine allows you to put more power where you need it, something that is not possible with a COTS device.
Just look at the huge IBM SAN, the DS8000 or V7000 - basically it's a cluster of AIX servers with lots of disks, and the RAID implementa
bycthulhu11 ( 842924 ) writes:
I didn't write anything re bottlenecks. I wrote about sucky software RAID implementations, ones that can't be grown live, need separate volume management and filesystem layers, etc.
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