If you're into it, read the whole thread so you can see and appreciate how much time and skill went into the creation of this image. Thanks to all the MacOS9Lives members that made this happen!
A quick look at an issue that commonly affects 2012 non-retina 13" MacBook Pros. These models were sold for years so this issue will be around for a while. Read more about it here: http://knownappleissues.com/2019/05/09/2012-13-macbook-pro-ram-slot-failure/
Initialization is done! Time for a quick speed test. I'll also answer the question "what would happen if you lose power during initialization?" and cover some power consumption readouts.
Information about the drives:
The 3.5” IDE drives are all 7200rpm.
The 2.5” SATA drives are all 7200rpm.
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The 250GB IDE drives all have 8MB cache and are all the same model (HDS722525VLAT80)
The 500GB IDE drives all have 8MB cache and are all the same model (HDS725050KLAT80)
The 1TB SATA drives all have 32MB cache and are all the same model (H2T10003272S)
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The 250GB and 500GB IDE drives require about 13 Watts when in use, each.
The 1TB SATA drives require about 1.65 Watts when in use, each.
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Fully loaded with these IDE drives the drive power consumption alone is 182 Watts tops.
Fully loaded with these SATA drives the drive power consumption alone is 23 Watts tops.
Where I live, that results in a savings of about $18 a year at the current electricity price. I'd make the investment of the SATA hard drives and IDE bridges back in about 27 years ;) Of course there is more to consider than just the power usage. Drive reliability and capacity play a major part. So is this all worth it? For me, yes. For you? Only you can know :)
Took one of the blower modules apart to see it it's worth the effort. Maybe replacing the just the fan instead of the whole module is significantly cheaper?
A quick overview of how to start different Xserve models from the front panel. Knowing how this works can and probably will come in handy at some point if you're an Xserve owner/administrator.
First video I did in 2018, using it to test out Odysee.
When I get a new Mac in I need to know what I'm working with. Is the RAM OK, is the GPU ready to handle pressure when it needs to, etc. So I run some tests and figured for my first Youtube video I'd record it and show you.
Turns out I was a bit more tired than I thought so I sound a little sleepy :) Also as everyone in my house was sleeping I had to keep my voice down a bit. The end result; very low volume audio.
Apple System Diagnostics (ASD) are not covered in this or any future videos. So why would I even mention it? You figure it out ;)
Some of the tests I use I have written about in the past, check out this link for that info:
https://www.intego.com/mac-security-blog/how-to-verify-your-macs-hardware-is-working-properly/
To check your software as well, have a look at the follow-up article I wrote:
https://www.intego.com/mac-security-blog/how-to-verify-your-macs-software-is-running-smoothly/
Stuff that doesn't appear in a video, I write about on my blog which can be found here:
https://thehouseofmoth.com/
(No audio in this video and I did not speed up any segments either)
Well I got the Xserve RAID in a rack, hooked it all up to the local network and did some speed tests. The results were rather disappointing. From RAID to host (Mac Pro) I see the speeds as observed in my last video. From host to another Mac on the network, performance takes a nosedive.
What you see in this video is several tests with 4.7GB DMG files to and from the different RAID controllers. Not sure yet why the speeds take such a big hit, particularly the read speeds, I'm still working on figuring that out. The speed gets lost at the host connected to the RAID but why...
The screen capture of the testing and the video of the RAID were taken during separate tests so LED activity does not sync up exactly. The observed activity on the RAID is exactly the same though.
The network is all gigabit. The host Mac (2009 Mac Pro) and test Mac (2012 Mac Pro with SSD's) are connected to the gigabit LAN and file transfers to other servers on the LAN get the full gigabit speeds for both read and write.
To be continued... :)
NOTE:
At the 13 minute mark I messed up the text. This should say:
"Copying
4.7GB from the 7TB RAID
and
4.7 GB to the 1.5GB RAID
Throughput plummets in both directions."
A quick update on the state of the damaged Xserve RAID. This box may need a new RAID controller card to get it half way up and running. Stay tuned for more updates!
A quick teardown of the Xserve RAID to see if there is anything left to salvage and possibly make this thing function again. Another Xserve RAID is on it's way to me now and that will be used in upcoming videos (if it arrives undamaged).