diamondpumpkin
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Is this the right software for me?
- Thread starter diamondpumpkin
- Start date
Chris Moore
Hall of Famer
- Joined
- May 2, 2015
- Messages
- 10,079
You have a misunderstanding of how the technology works. A single SAS HBA (even an old one) can run at around 4GB/s, which is way faster than a SSD. You don't need two cards. One SAS HBA (even an old one) can control over a hundred drives by way of SAS Expander chips. The limiting factor of performance is the mechanical drive and putting them in a RAID-5 is not a sure way of obtaining performance close to that of a SSD.
We can help you with some education to get you the understanding you need, but it would be a good thing for us to understand where you are, what hardware you have obtained, and exactly what it is you are trying to do. Depending on what you want, you may need different hardware or even more drives. It is always best to ask before buying.
- Joined
- May 28, 2011
- Messages
- 10,996
No, FreeNAS does not do RAID5 but it does similar. Drive speed is going to depend on what you are going to use the system for, for example Mirrors are very fast while RAIDZ2 or RAIDZ3 has it's benefits.
Slideshow explaining VDev, zpool, ZIL and L2ARC
https://www.ixsystems.com/community...ning-vdev-zpool-zil-and-l2arc-for-noobs.7775/
Terminology and Abbreviations Primer
https://www.ixsystems.com/community/threads/terminology-and-abbreviations-primer.28174/
As for the parts you picked, I would highly recommend that you read over the hardware recommendations before spending all that money. Here is what I am getting at and this is just friendly advice from someone who runs a home system as well.
1. Your motherboard, CPU, RAM, and Power Supply are the most important items in your system as you should demand a stable and reliable system, especially if you are considering using a robust server software such as FreeNAS with the ZFS file system. These components are generally a one-time purchase for typically 10+ years with the only thing generally failing is a fan or two.
2. The hard drives are the most expensive items you will purchase and they are typically are warrantied for 3 to 5 years (most will last up to 5 years with proper cooling and setup). The WD Red Pro drives you selected have a 5 year warranty, but these drive also get hot. These are considered disposable items with a very limited life.
3. My point here is spend your money wisely, buy a good quality motherboard, CPU, RAM, and Power Supply, the money you spend here can make or break the performance of your system and how well you enjoy it. You don't need IPMI but some folks really like it. You may not need a top of the line CPU but if you plan to run recourse demanding VMs then you may need that. RAM needs to be compatible with the motherboard. And your power supply needs to be robust and have clean power outputs. I'm not saying you need a 1000 Watt power supply where a 500 Watt woudl do fine but many power supplies are crap. Not saying a "Zippy" power supply is bad, I've never heard of them before but why put a few thousand dollars of hardware on a generic power supply? I wouldn't myself.
So a little history on myself, I was one of the first people to use an AMD system with FreeNas, that was a long time ago when FreeNAS was on version 8.0 and I was told it would never work or I'd have all kinds of problems. Well I did get it to work just fine but it's ture, I had some minor limitations as FreeNAS evolved. I ended up replacing the AMD system with a Supermicro and Intel system, with respect to FreeNAS, the best move I made.
Hardware Requirements
https://www.freenas.org/hardware-requirements/
Hardware Recommendations Guide Rev. 1e) 2017-05-06
https://www.ixsystems.com/community/resources/hardware-recommendations-guide.12/
My last comment would be for you to write down a list of things you would like the FreeNAS system to achieve, for example:
1. Total Storage Capacity.
2. RAID Type.
3. iSCSI support (dictated storage type somewhat).
4. Will you be running VMs? If yes, what kinds.
5. Plex transcoding?
6. How critical is your data? If it's very high then pool redundancy it important and a stable system as well.
7. Do you want a quiet system?
Slideshow explaining VDev, zpool, ZIL and L2ARC
https://www.ixsystems.com/community...ning-vdev-zpool-zil-and-l2arc-for-noobs.7775/
Terminology and Abbreviations Primer
https://www.ixsystems.com/community/threads/terminology-and-abbreviations-primer.28174/
As for the parts you picked, I would highly recommend that you read over the hardware recommendations before spending all that money. Here is what I am getting at and this is just friendly advice from someone who runs a home system as well.
1. Your motherboard, CPU, RAM, and Power Supply are the most important items in your system as you should demand a stable and reliable system, especially if you are considering using a robust server software such as FreeNAS with the ZFS file system. These components are generally a one-time purchase for typically 10+ years with the only thing generally failing is a fan or two.
2. The hard drives are the most expensive items you will purchase and they are typically are warrantied for 3 to 5 years (most will last up to 5 years with proper cooling and setup). The WD Red Pro drives you selected have a 5 year warranty, but these drive also get hot. These are considered disposable items with a very limited life.
3. My point here is spend your money wisely, buy a good quality motherboard, CPU, RAM, and Power Supply, the money you spend here can make or break the performance of your system and how well you enjoy it. You don't need IPMI but some folks really like it. You may not need a top of the line CPU but if you plan to run recourse demanding VMs then you may need that. RAM needs to be compatible with the motherboard. And your power supply needs to be robust and have clean power outputs. I'm not saying you need a 1000 Watt power supply where a 500 Watt woudl do fine but many power supplies are crap. Not saying a "Zippy" power supply is bad, I've never heard of them before but why put a few thousand dollars of hardware on a generic power supply? I wouldn't myself.
So a little history on myself, I was one of the first people to use an AMD system with FreeNas, that was a long time ago when FreeNAS was on version 8.0 and I was told it would never work or I'd have all kinds of problems. Well I did get it to work just fine but it's ture, I had some minor limitations as FreeNAS evolved. I ended up replacing the AMD system with a Supermicro and Intel system, with respect to FreeNAS, the best move I made.
Hardware Requirements
https://www.freenas.org/hardware-requirements/
Hardware Recommendations Guide Rev. 1e) 2017-05-06
https://www.ixsystems.com/community/resources/hardware-recommendations-guide.12/
My last comment would be for you to write down a list of things you would like the FreeNAS system to achieve, for example:
1. Total Storage Capacity.
2. RAID Type.
3. iSCSI support (dictated storage type somewhat).
4. Will you be running VMs? If yes, what kinds.
5. Plex transcoding?
6. How critical is your data? If it's very high then pool redundancy it important and a stable system as well.
7. Do you want a quiet system?
Chris Moore
Hall of Famer
- Joined
- May 2, 2015
- Messages
- 10,079
It is a good idea to look over this guide to give you some idea of the kind of information we would like to see so we can help you better.
https://www.ixsystems.com/community/threads/forum-guidelines.45124
https://www.ixsystems.com/community/threads/forum-guidelines.45124
