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Old SSD for TV Cache?
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<blockquote data-quote="nfox" data-source="post: 1198075" data-attributes="member: 24296"><p>I have been using a 120GB SSD partitioned as 60GB for the OS and MePo, and 60GB for the time-shift buffer for almost 2 years without any issues. I would guess that the TV is time-shifting for at least 4 hours a day. I did some very basic arithmetic based on a standard definition time-shift buffer stream using 2GB per hour (this is a number I think I remember from posts on this forum and elsewhere, but please correct me if I am way out).</p><p></p><p>2GB per hour for 4 hours = 8GB per day</p><p>8GB per day for 7 days = 56GB per week</p><p>56GB per week for 52 weeks = 2,192GB per year</p><p></p><p>So, if you watch SD telly for four hours a day for a year, approximately 3TB of time-shift data will be written to the disk in that time.</p><p></p><p>I have had a very quick look at the specs of a couple of 120GB SSDs and one claims a total endurance of 30TB, and the other 60TB. Taking a worst case scenario of 30TB and dividing by 2 (it's a 60GB partition) gives an endurance of 15TB. Or 5 years of use. I reckon that's not bad, considering how cheap small SSDs are these days.</p><p></p><p>I suppose if you are time-shifting HD content for 12 hours a days, and/or I'm horribly wrong with my guesstimate of buffer bandwidth, then an endurance of 15GB is not much, but there are SSDs claiming double the endurance, and you can use a bigger SSD.</p></blockquote><p></p>
[QUOTE="nfox, post: 1198075, member: 24296"] I have been using a 120GB SSD partitioned as 60GB for the OS and MePo, and 60GB for the time-shift buffer for almost 2 years without any issues. I would guess that the TV is time-shifting for at least 4 hours a day. I did some very basic arithmetic based on a standard definition time-shift buffer stream using 2GB per hour (this is a number I think I remember from posts on this forum and elsewhere, but please correct me if I am way out). 2GB per hour for 4 hours = 8GB per day 8GB per day for 7 days = 56GB per week 56GB per week for 52 weeks = 2,192GB per year So, if you watch SD telly for four hours a day for a year, approximately 3TB of time-shift data will be written to the disk in that time. I have had a very quick look at the specs of a couple of 120GB SSDs and one claims a total endurance of 30TB, and the other 60TB. Taking a worst case scenario of 30TB and dividing by 2 (it's a 60GB partition) gives an endurance of 15TB. Or 5 years of use. I reckon that's not bad, considering how cheap small SSDs are these days. I suppose if you are time-shifting HD content for 12 hours a days, and/or I'm horribly wrong with my guesstimate of buffer bandwidth, then an endurance of 15GB is not much, but there are SSDs claiming double the endurance, and you can use a bigger SSD. [/QUOTE]
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