Transcript of SCOM0802

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[00:00:04.40] - [Don] Hi, this is Don McAllister,
[00:00:05.96] and welcome to another weekly tip video.
[00:00:09.02] As proven by the recent ScreenCastsOnline survey,
[00:00:12.07] most members have multiple Apple devices
[00:00:14.24] within their home or business environment.
[00:00:16.93] As such, there's a constant demand from all devices
[00:00:19.63] to download software updates and apps
[00:00:21.74] as well as sync iCloud data
[00:00:23.16] between all of your different devices.
[00:00:26.33] Since macOS High Sierra, Apple have provided
[00:00:28.91] a little known service called Content Caching
[00:00:31.57] to reduce bandwidth and speed up installation
[00:00:33.77] on supported devices by storing software updates,
[00:00:36.73] apps, and other content on your Mac or local drive.
[00:00:40.10] Once the said content is stored in a content cache
[00:00:42.74] on your Mac, it's made available for other devices
[00:00:45.21] to retrieve without the need for them to go out
[00:00:47.52] over the Internet.
[00:00:49.47] Now it's amazingly easy to set this up.
[00:00:51.47] Before we do that, if I just go across to Safari
[00:00:53.54] just to give you an idea of some of the types of content
[00:00:56.27] that is supported by the content caching,
[00:00:59.41] you can have a look at this webpage
[00:01:00.49] across on the Apple website.
[00:01:02.34] iTunes and iBooks, iOS app purchases and app updates
[00:01:06.60] bearing in mind that this is only for wireless updates.
[00:01:09.74] If you get updates via iTunes,
[00:01:11.68] the content caching doesn't work
[00:01:12.78] in that particular instance,
[00:01:13.96] if you're using wireless updates,
[00:01:15.67] you get all these iBooks store content, macOS updates,
[00:01:18.90] Mac App Store updates, software updates,
[00:01:21.45] GarageBand downloadable content, and then iOS updates,
[00:01:24.94] Apple TV updates, so lots and lots and lots
[00:01:27.49] of different types of content can be cached
[00:01:29.81] in your content cache service.
[00:01:32.02] It really just speed up and reduce the amount of bandwidth
[00:01:34.69] that you need when updating your various devices,
[00:01:37.75] and not forgetting iCloud data as well.
[00:01:40.23] In fact, if I scroll down, you'll see, here we go,
[00:01:42.22] iCloud data caching, photos and documents,
[00:01:44.97] for OS X El Capitan and later.
[00:01:48.49] How do we go about setting this up?
[00:01:49.89] It really is very, very simple.
[00:01:51.79] If we go across to System Preferences,
[00:01:53.93] and then within System Preferences,
[00:01:56.01] if you go to Sharing, and then down at the bottom,
[00:01:59.19] you'll see there is an option here for content caching.
[00:02:02.25] Currently it's switched off.
[00:02:03.76] Before we switch it on,
[00:02:04.59] let's have a look at some of the options.
[00:02:07.07] Under Cache, there are three options:
[00:02:09.25] All Content, Only Shared Content.
[00:02:12.16] All content being everything,
[00:02:13.52] that includes your iCloud updates
[00:02:14.88] and your app updates as well.
[00:02:17.10] Or if you just want to cache your iCloud content,
[00:02:20.04] you can select iCloud here.
[00:02:22.04] It's all, only shared content, apps and updates, etc.
[00:02:25.65] or just iCloud.
[00:02:27.02] I'm going to go ahead and say All Content.
[00:02:29.52] If you attach devices via a USB connection
[00:02:32.51] to this particular Mac, the Mac I'm working on,
[00:02:34.75] you can switch on Internet Connection using this check box.
[00:02:38.52] As you can see, this will share
[00:02:39.74] this computer's internet connection and cached content
[00:02:42.91] with any iOS device connected using USB.
[00:02:45.97] I'll leave that switched off for now.
[00:02:47.68] We also have an options button here.
[00:02:50.41] This is where you decide where you want the cache to be.
[00:02:53.44] Now by default, it will be stored
[00:02:55.56] in your boot drive of your Mac.
[00:02:57.90] If you want to change that, you can just click on edit.
[00:03:00.31] I can select any partition on my Mac
[00:03:02.65] or any locally attached hard drive as well.
[00:03:05.12] If I have a hard drive with lots and lots
[00:03:06.82] of space available, this being a small laptop,
[00:03:09.28] there is not much that much available on here yet.
[00:03:11.19] There's only 14 GB.
[00:03:12.57] Perhaps I want to use this Samsung SSD.
[00:03:15.22] I'm gonna move my cache to there.
[00:03:17.54] Storage Used: none,
[00:03:18.48] I've not switched it on as yet.
[00:03:20.36] If you are limited in space though,
[00:03:21.64] you can amend the size of the cache.
[00:03:25.20] I'm gonna leave it as Unlimited
[00:03:26.84] 'cause I've got plenty of space on my SSD drive.
[00:03:29.47] What will happen if you do select one of these lower options
[00:03:31.95] is it will sensibly manage the cache.
[00:03:34.17] So, it will delete older items or items
[00:03:36.85] that aren't being accessed frequently
[00:03:38.78] just so that you have the most up-to-date content
[00:03:41.29] stored within your cache.
[00:03:43.52] I'm gonna say OK to that.
[00:03:45.42] There is another option as well,
[00:03:46.87] which I'll need to tell you about.
[00:03:48.52] But, there we go,
[00:03:49.47] Content caching is moving data.
[00:03:51.01] It's just creating the data structures required
[00:03:53.67] for the content cache to work.
[00:03:55.56] So, we'll just wait for that to complete.
[00:03:57.99] Okay, that's now completed.
[00:03:59.60] So we'll switch this on by clicking on here.
[00:04:02.72] Content caching is starting.
[00:04:06.41] That's now completed.
[00:04:07.45] Restart devices to take advantage
[00:04:09.17] of content caching immediately.
[00:04:10.78] So if you have an iPhone or an iPad,
[00:04:12.47] and you want them to use this content cache,
[00:04:14.74] just restart them.
[00:04:16.00] But I'll just say OK to that.
[00:04:17.98] We have green showing that everything is working fine.
[00:04:21.25] Now if you have quite a complex environment
[00:04:23.38] or, say, you're a business with multiple Macs,
[00:04:25.35] and you want to create a more complex structure,
[00:04:27.64] you can configure the content caching
[00:04:29.48] to be part of a Parent-Child configuration.
[00:04:33.09] The way you would do that, and it's probably out of scope
[00:04:35.13] for this particular show, but just to give you an example,
[00:04:38.00] hold down the Alt or Option key.
[00:04:40.17] You'll see the Options button changes to Advanced Options.
[00:04:43.11] I click on there now.
[00:04:44.59] You see, we have the options to go for clients,
[00:04:47.66] changing the cache content for various things
[00:04:49.76] using different IP addresses, setting up peers,
[00:04:53.33] and setting up parents as well.
[00:04:55.08] But, again, probably a little bit too complex to go into
[00:04:57.92] and not really necessary in a home environment.
[00:05:00.54] But, you can find some support information
[00:05:02.48] on the Apple website if you do need to go down
[00:05:04.47] the advanced route.
[00:05:05.80] I'll just say cancel to that.
[00:05:07.67] And, we're ready to go.
[00:05:09.34] So if I close this down,
[00:05:10.47] if you want to keep a track of your cache
[00:05:13.29] and how it's behaving,
[00:05:14.76] you can access some information via your Activity Monitor.
[00:05:17.96] I've already started Activity Monitor.
[00:05:20.52] Now because this is a relatively new cache
[00:05:22.39] that I've just set up, nothing is happening at the moment.
[00:05:25.15] You will normally see, after it's been in use,
[00:05:27.77] a small button here that says Cache,
[00:05:29.66] and that will give you some information.
[00:05:31.22] Let me pop this down.
[00:05:32.05] What I will do is if I go across to Preview,
[00:05:35.30] this is a screenshot of Activity Monitor
[00:05:37.80] across on my iMac Pro.
[00:05:39.66] You'll see here I have the Cache option.
[00:05:41.89] You can see Data Served, Data Served To Clients,
[00:05:44.94] Data Served From Origin, and broken down by the last hour,
[00:05:48.39] last 24 hours, last 7 days, and the last 30 days.
[00:05:52.28] In the 30 days from my iMac Pro,
[00:05:54.92] I've served 46.95 GB of data to various clients,
[00:05:59.87] and I've pulled in 34.61 GB from Origin.
[00:06:04.78] With the family all using iPhones,
[00:06:06.47] I have several iPads, we have the Apple TV,
[00:06:09.25] a couple of Macs, you'll see, over a number of days,
[00:06:11.99] you can rack up quite large amounts of data
[00:06:15.60] that's being synchronised between the devices
[00:06:17.56] using the content cache, and we don't need to pull
[00:06:20.37] that data down, that amount of data down
[00:06:22.53] for each device from the Internet.
[00:06:25.73] That's iCloud Content Caching.
[00:06:26.89] Very easy to set up.
[00:06:28.67] If you have more than one or two extra devices,
[00:06:31.48] I would really recommend that you set that up.
[00:06:34.29] That's it for this week's tip video.
[00:06:36.15] We'll be back next week
[00:06:37.13] with another ScreenCastsOnline tutorial.
[00:06:39.44] So we'll see you then.
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