BadNewsBears
Diamond Member
- Dec 14, 2000
- 3,426
- 0
- 0
What the hells 5?
Originally posted by: soltrain
What the hells 5?
Raid 5 is striping with parity.
i believe you need at least 3 drives to run a raid 5
Originally posted by: chizow
Originally posted by: soltrain
What the hells 5?
Raid 5 is striping with parity.
i believe you need at least 3 drives to run a raid 5
That's correct, but you don't get added storage space of a RAID 0 array, and the array is as large as the smallest in the array. You'll also need a 4-channel hardware RAID card for RAID 5, as the parity calculations aren't generally supported by softRAID controllers with no dedicated mathCPU. Nice thing about RAID 5 is that if one drive fails, the array can rebuild itself (while fully functional) b/c of the parity data stored on the 3rd drive.
These cards are based on the Sil680 softRAID controller; I had the one from Newegg for those of you asking. Its an excellent performer, but it used up quite a few CPU cycles in some apps and also didn't have functional LED headers. The one linked in the original post does. The results I had were very good, but I went with a 3ware Escalade 7000-2 hardware RAID card, and have been very pleased with it. I get read and writes in the 70mbps to 90mbps range and it uses significantly less CPU utilization.
Chiz
Originally posted by: diablonhn
there's a lot of
references:
Patterson, Gibson, Katz, A Case for Redundant Arrays of Inexpensive Disks (RAID), UCB circa 1980's
Burkard, Storage System Architecture lecture notes, UCSD 2003
Nevermind, I just ordered the better model from NewEgg. It was $33 with free FedEx shipping.Originally posted by: TheToddler
Is everyone happy with this controller? I'd order it, but it bothers me if they are advertising the model with IDE activity jumpers and shipping the cheaper one. Is that still the case?
Originally posted by: TheToddler
Nevermind, I just ordered the better model from NewEgg. It was $33 with free FedEx shipping.Originally posted by: TheToddler
Is everyone happy with this controller? I'd order it, but it bothers me if they are advertising the model with IDE activity jumpers and shipping the cheaper one. Is that still the case?
Anyone with the money for a four-drive RAID0 and controller owes it to himself to try a Cheetah 15k.3 first.
Originally posted by: RazeOrc
4xRAID0 is insane, it's faster than SCSI hands down, gives you tremendous storage (even using boring 40GB HDDs) but you have to be concerned about corruption of a disk or failure of a disk.
Originally posted by: Nosferatu
I was looking at symantec's site a little while ago. If I recall correctly. Most of the time, Ghost can not do a clone of a RAID.
ghost
Before you scream that it says ghost 2001, look down under solutions where it says 2003 and below....
Now if anyone does know how to clone a hardware array, I would love to know how....
Originally posted by: chizow
I posted on this earlier, but I returned 2 of the PIRFLEX 133's from NE b/c they don't have functional LED headers, just 2 very weak LEDs that aren't visible even with a case window (they face down and are very dim). Just an FYI for those who need to see a LED indicator to know their HDDs are spinning. Card performance is quite excellent though, comes very close to a Highpoint RocketRAID 133 card that costs 2.5x as much.
Chiz
Originally posted by: TheToddler
Originally posted by: chizow
I posted on this earlier, but I returned 2 of the PIRFLEX 133's from NE b/c they don't have functional LED headers, just 2 very weak LEDs that aren't visible even with a case window (they face down and are very dim). Just an FYI for those who need to see a LED indicator to know their HDDs are spinning. Card performance is quite excellent though, comes very close to a Highpoint RocketRAID 133 card that costs 2.5x as much.
Chiz
Chiz,
I saw your posts, which was why I ordered that specific item from NewEgg instead of Neutron. Maybe I'm confused. You said the card in the original post has a functional IDE activity LED jumper. That card is IOFLEX-PIR133 (the green PCB with black drive connectors). But people said they were actually receiving the IO-PIR133 (black PCB with blue and white drive connectors) from Neutron. So I assumed you meant that the green PCB was the card to get. Didn't you thank Kevman for telling you that J2 is for the HD LED?
Toddler
Originally posted by: chizow
Originally posted by: TheToddler
Originally posted by: chizow
I posted on this earlier, but I returned 2 of the PIRFLEX 133's from NE b/c they don't have functional LED headers, just 2 very weak LEDs that aren't visible even with a case window (they face down and are very dim). Just an FYI for those who need to see a LED indicator to know their HDDs are spinning. Card performance is quite excellent though, comes very close to a Highpoint RocketRAID 133 card that costs 2.5x as much.
Chiz
Chiz,
I saw your posts, which was why I ordered that specific item from NewEgg instead of Neutron. Maybe I'm confused. You said the card in the original post has a functional IDE activity LED jumper. That card is IOFLEX-PIR133 (the green PCB with black drive connectors). But people said they were actually receiving the IO-PIR133 (black PCB with blue and white drive connectors) from Neutron. So I assumed you meant that the green PCB was the card to get. Didn't you thank Kevman for telling you that J2 is for the HD LED?
Toddler
Yah, I thought it was, but it didn't work :| Upon further inspection, I saw that J1 has jumper solder points, but no jumpers Not sure what Koutech was thinking, maybe they thought internal LEDs were better than a header for an external LED indicator. You might have better luck, but its definitely a different card, and I didn't realize that Kevman and the others that ordered in this post actually had a different card until after I received my 2nd board. If you don't mind the possibility of not having an external LED header, the IOFLEX is an excellent card (based on the Sil680) for the price.
Chiz
Originally posted by: TheToddler
Originally posted by: chizow
Originally posted by: TheToddler
Originally posted by: chizow
I posted on this earlier, but I returned 2 of the PIRFLEX 133's from NE b/c they don't have functional LED headers, just 2 very weak LEDs that aren't visible even with a case window (they face down and are very dim). Just an FYI for those who need to see a LED indicator to know their HDDs are spinning. Card performance is quite excellent though, comes very close to a Highpoint RocketRAID 133 card that costs 2.5x as much.
Chiz
Chiz,
I saw your posts, which was why I ordered that specific item from NewEgg instead of Neutron. Maybe I'm confused. You said the card in the original post has a functional IDE activity LED jumper. That card is IOFLEX-PIR133 (the green PCB with black drive connectors). But people said they were actually receiving the IO-PIR133 (black PCB with blue and white drive connectors) from Neutron. So I assumed you meant that the green PCB was the card to get. Didn't you thank Kevman for telling you that J2 is for the HD LED?
Toddler
Yah, I thought it was, but it didn't work :| Upon further inspection, I saw that J1 has jumper solder points, but no jumpers Not sure what Koutech was thinking, maybe they thought internal LEDs were better than a header for an external LED indicator. You might have better luck, but its definitely a different card, and I didn't realize that Kevman and the others that ordered in this post actually had a different card until after I received my 2nd board. If you don't mind the possibility of not having an external LED header, the IOFLEX is an excellent card (based on the Sil680) for the price.
Chiz
Hmm...well I found a posting in the newsgroups where someone with the IOFLEX said that their case HDD LED flashes via the motherboard when there is RAID activity on the card. Is that the case? Should I have ordered the cheaper model?