FredG89 Posted January 12, 2015 Share Posted January 12, 2015 So I'm getting ready to upgrade my cache to an ssd and I was wondering what size should I go with. I'm sure everyone is going to say the bigger the better but if I can save on the ssd, I could just use that money to...o...I don't know, buy another harddrive. lol So I was going to get the Crucial MX100 512GB ssd but if 256 will work...then you know... For reference, I run mb3server (I plan on enabling chapter screens once I get the ssd), couchpotato, nzbdrone/sonarr, maraschino, and sabnzbd. The only issue I could potential see running into is the ssd running out of space before mover kicks in. I'm not sure how much space mb3server takes up with the chapter screens. Link to comment
StevenD Posted January 12, 2015 Share Posted January 12, 2015 Get the 512. They are less than $200. I'm runing an M550 512, formatted as xfs, and it works great. Link to comment
pkn Posted January 12, 2015 Share Posted January 12, 2015 I've got 1TB Samsung 840 EVO for one of cache drives (I needed 1 TB space), but if I'll be doing it again, I would instead buy two mSATA SSDs 512 GB each and mount them into 2.5" "SSD-case" SATA adaptor with RAID-0. Or maybe even four 256 GB mSATAs, I think I already saw somewhere a 2.5" form-factor "SSD-case" capable of holding 4 mSATAs with RAID-0. Of course this could be scaled down to 512 GB or 256 GB. The point is in using mSATAs in RAID-0 in SATA adaptor (or even in PCIe adaptor). This variant provides much higher speed, same capacity, approximately same price. Lower reliability, but that's O.K. with me, especially for SSDs. Link to comment
StevenD Posted January 12, 2015 Share Posted January 12, 2015 I've got 1TB Samsung 840 EVO for one of cache drives (I needed 1 TB space), but if I'll be doing it again, I would instead buy two mSATA SSDs 512 GB each and mount them into 2.5" "SSD-case" SATA adaptor with RAID-0. Or maybe even four 256 GB mSATAs, I think I already saw somewhere a 2.5" form-factor "SSD-case" capable of holding 4 mSATAs with RAID-0. I have another M550 and I want to run in RAID 1. Have you found one of those cases that support SATA III (6.0Gb/s) ? Link to comment
pkn Posted January 13, 2015 Share Posted January 13, 2015 I've got 1TB Samsung 840 EVO for one of cache drives (I needed 1 TB space), but if I'll be doing it again, I would instead buy two mSATA SSDs 512 GB each and mount them into 2.5" "SSD-case" SATA adaptor with RAID-0. Or maybe even four 256 GB mSATAs, I think I already saw somewhere a 2.5" form-factor "SSD-case" capable of holding 4 mSATAs with RAID-0. I have another M550 and I want to run in RAID 1. Have you found one of those cases that support SATA III (6.0Gb/s) ? Dual-mSATA to SATA-III adapters with RAID-0/1 are plenty http://www.newegg.com/Product/Product.aspx?Item=N82E16817998231 http://www.newegg.com/Product/Product.aspx?Item=N82E16812186221 http://www.addonics.com/products/ad252msdr.php http://www.addonics.com/products/ad2msahdr.php The four-mSATAs adapter I mentioned - I can't remember where I saw it and can not find it now... and now, googling and trying to recall, I'm having doubts that I actually saw it and was not just thinking "how great it would be"... The Addonics AD4MSPX2 below is quad-mSATA, but it's PCIe card, not SATA http://www.addonics.com/products/ad4mspx2.php Link to comment
StevenD Posted January 13, 2015 Share Posted January 13, 2015 I've got 1TB Samsung 840 EVO for one of cache drives (I needed 1 TB space), but if I'll be doing it again, I would instead buy two mSATA SSDs 512 GB each and mount them into 2.5" "SSD-case" SATA adaptor with RAID-0. Or maybe even four 256 GB mSATAs, I think I already saw somewhere a 2.5" form-factor "SSD-case" capable of holding 4 mSATAs with RAID-0. I have another M550 and I want to run in RAID 1. Have you found one of those cases that support SATA III (6.0Gb/s) ? Dual-mSATA to SATA-III adapters with RAID-0/1 are plenty http://www.newegg.com/Product/Product.aspx?Item=N82E16817998231 http://www.newegg.com/Product/Product.aspx?Item=N82E16812186221 http://www.addonics.com/products/ad252msdr.php http://www.addonics.com/products/ad2msahdr.php The four-mSATAs adapter I mentioned - I can't remember where I saw it and can not find it now... and now, googling and trying to recall, I'm having doubts that I actually saw it and was not just thinking "how great it would be"... The Addonics AD4MSPX2 below is quad-mSATA, but it's PCIe card, not SATA http://www.addonics.com/products/ad4mspx2.php Yeah. Unfortunately, I already have the two M550 SATA 2.5" drives in-hand. Link to comment
WeeboTech Posted January 13, 2015 Share Posted January 13, 2015 I've used the startech one with success. Keep in mind, the interface is SATA II not SATA III. These hardware devices usually are made from the same chipsets, so investigate the SATA Speed. This is another option. KINGWIN HDCV-2 Dual 2.5" to 3.5" SATA HDD Converter w/ Raid http://www.newegg.com/Product/Product.aspx?Item=N82E16817990020 Link to comment
StevenD Posted January 13, 2015 Share Posted January 13, 2015 I've used the startech one with success. Keep in mind, the interface is SATA II not SATA III. These hardware devices usually are made from the same chipsets, so investigate the SATA Speed. This is another option. KINGWIN HDCV-2 Dual 2.5" to 3.5" SATA HDD Converter w/ Raid http://www.newegg.com/Product/Product.aspx?Item=N82E16817990020 Yeah, I think I will buy one of those and try it out. It is only SATA II, but I would be really happy to have a RAID 1 cache again. Link to comment
pkn Posted January 13, 2015 Share Posted January 13, 2015 I've used the startech one with success. Keep in mind, the interface is SATA II not SATA III. These hardware devices usually are made from the same chipsets, so investigate the SATA Speed. Well the StarTech 25SAT22MSAT specs do say "Maximum Data Transfer Rate : 6 Gbps", "Type and Rate: SATA III (6 Gbps)", and "Compatible with SATA revision I/II/III (1.5/3.0/6.0 Gbps) drives and controllers" This is another option. KINGWIN HDCV-2 Dual 2.5" to 3.5" SATA HDD Converter w/ Raid http://www.newegg.com/Product/Product.aspx?Item=N82E16817990020 Thanks! Interesting option indeed. I have some old unused 2.5" HDDs which I might put in it... Link to comment
StevenD Posted January 13, 2015 Share Posted January 13, 2015 Amazon had mSATA M550 512GB drives for $170 yesterday. I thought about it too long and missed out. Those would have been perfect for the StarTech. Link to comment
WeeboTech Posted January 13, 2015 Share Posted January 13, 2015 I've used the startech one with success. Keep in mind, the interface is SATA II not SATA III. These hardware devices usually are made from the same chipsets, so investigate the SATA Speed. Well the StarTech 25SAT22MSAT specs do say "Maximum Data Transfer Rate : 6 Gbps", "Type and Rate: SATA III (6 Gbps)", and "Compatible with SATA revision I/II/III (1.5/3.0/6.0 Gbps) drives and controllers" My experience with the 25SAT22MSAT, is that it topped out at 200MB/s http://lime-technology.com/forum/index.php?topic=36048.msg335796#msg335796 If you look at the reviews, that was another person's experience. http://www.newegg.com/Product/Product.aspx?Item=N82E16817998231 Link to comment
WeeboTech Posted January 13, 2015 Share Posted January 13, 2015 Amazon had mSATA M550 512GB drives for $170 yesterday. I thought about it too long and missed out. Those would have been perfect for the StarTech. Had I been paying attention, I would have picked up a few. (doh!) Link to comment
StevenD Posted January 13, 2015 Share Posted January 13, 2015 Amazon had mSATA M550 512GB drives for $170 yesterday. I thought about it too long and missed out. Those would have been perfect for the StarTech. Had I been paying attention, I would have picked up a few. (doh!) Thats the second time in a week. Set up a price alert on camelcamelcamel.com. Link to comment
Pete Posted January 26, 2015 Share Posted January 26, 2015 I've got 1TB Samsung 840 EVO for one of cache drives (I needed 1 TB space), but if I'll be doing it again, I would instead buy two mSATA SSDs 512 GB each and mount them into 2.5" "SSD-case" SATA adaptor with RAID-0. Or maybe even four 256 GB mSATAs, I think I already saw somewhere a 2.5" form-factor "SSD-case" capable of holding 4 mSATAs with RAID-0. For what reason do you need the speed of a Raid0 with SSDs giving you probably 900 MB/s bandwidth? I assume neither your network nor you data disks will go over 200 MB/s at best. IMO the point to use an SSD as cache is to provide write speeds faster than your network bandwidth (for saving larger files) and a high IOPs limit (for a saving lots of small files). For both a single SSD should be more than adequate. Pete Link to comment
pkn Posted January 26, 2015 Share Posted January 26, 2015 I've got 1TB Samsung 840 EVO for one of cache drives (I needed 1 TB space), but if I'll be doing it again, I would instead buy two mSATA SSDs 512 GB each and mount them into 2.5" "SSD-case" SATA adaptor with RAID-0. Or maybe even four 256 GB mSATAs, I think I already saw somewhere a 2.5" form-factor "SSD-case" capable of holding 4 mSATAs with RAID-0. For what reason do you need the speed of a Raid0 with SSDs giving you probably 900 MB/s bandwidth? Movies-related - remuxing and other mkvtoolnix tasks, it's done locally. Also some non-movies IO-intensive jobs. I assume neither your network nor you data disks will go over 200 MB/s at best. IMO the point to use an SSD as cache is to provide write speeds faster than your network bandwidth (for saving larger files) and a high IOPs limit (for a saving lots of small files). For both a single SSD should be more than adequate. Pete Your are right, if the cache drive is used exclusively to move files in/out of unRAID. Link to comment
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