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SSD RAID1(SW) or SATA RAID10(HW)
Please help me choose the better option from the below.
For a e1240v2 CPU, what would be the better choice in disks?
2x 120GB SSD in Software RAID1 or 4x 500GB WD RE4 in Hardware RAID10 (3Ware RAID10 with 512 cache)
The second option costs a bit more($15) than the first.
I need a balance of reliability and performance. Am only gonna run it for hosting web applications (blogs/forums).
Comments
What's the make of the SSD disks?
I'd personally go for the SSD's, just have a backup of your crucials.
the SSD's would give you performance (unless they are a very cheap brand) but the hardware raid would probably give you a bit more reliability and stability.
I know that does not help
Depends on what SSD's they are.
They haven't mentioned the model/brand of the SSD drives.
What is a proper SSD model/brand that is normally used in servers?
Entire discussion about the subject here: http://www.lowendtalk.com/discussion/8973/software-raid1-with-ssds-instead-of-hardware-raid10-with-mechanical-drives
SW RAID on SSDs is sad.
@Nick_A for pure SSD storage, yeah..
For simple web hosting without heavy db access, I would go with mechanical drives.
For high IOPS apps, I go with SSDs in raid 0 with frequent back-ups on an extra mechanical drive.
This is just a matter of preference, general rule, SSD for disk intensive apps, regular mechanical for everyday use. Mechanical offer more space also.
Read lots, write little = consumer SSD.
Read lots, write lots = enterprise SSD. (with an eye twitching price)
Read lots/little, write lots = spinny disks. (without any eye twitching)
(for completeness)
Read little, write little = owt you fancy :P
I'd assume your hosting is read lots, write little. Personally I'd go for the disks as it offers more storage.
Right now the only real trusted SSD's are the Intel S3700's the 710's and Kingston's SSDNow E Series (Expensive). All of these disks support flush to disk in the event of a power failure.
The Intel 520s are write-safe as well, they don't use a cache.
Intel 520s have no buffer to be flushed. Equally as safe imho
@Microlinux @ShardHost anything Sandforce based doesn't have a cache.
Yup. Intel 520s are my SSD of choice at the moment for general workloads.