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VGLB和AOS 5.6


UserLevel 2
徽章 +4
  • UPX
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您大多数人可能知道,使用AOS 5.6引入了具有负载平衡功能的音量组,众所周知VGLB
据我所知,5.6版本是短期支持的。
现在,我正在用AOS 5.5.3.1的2 8000 6节点AOS-AHV簇部署两个Oracle 12C RAC簇。
它涉及使用具有多个VDisk,网络相关配置,Linux相关调整等的音量组等...
当然,拥有5.5.3.1(到目前为止,最新的GA版本在长期支持中),我没有VGLS选择,每个卷组的I/O都由一个CVM管理。
另一方面,使用AOS 5.6,我可以在每个CVM和群集上的每个节点存储中分配此负载。
这对弹性,性能和资源分配产生了重大影响。
问题是两个,我需要一些建议。
1)即使在短期支持中,也可以更好地升级到5.6?
2)是否可以使用“ vg.update load_balance_vm_attacchments”更新卷的配置“飞行”,或者我应该重新创建CHE量?(是否有第三枪或其他相关程序?)
非常感谢
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最好的答案乔恩2018年8月29日,05:57

@UPX<\/user-mention>
\r\n1) If you're specifically wanting VGLB's performance capabilities (which are top notch, I was part of the team that worked on validating that features top end performance), then yes, 5.6++ is a good fit.
\r\n
\r\nIf you're worried about supportability, note that all STS releases should get at least two patches (example, 5.6, 5.6.1, 5.6.2) before that branch is moved out to another STS release, like 5.8, 5.8.1, etc. These come roughly every ~4-5 weeks, so the
\r\n
\r\nIf you're worried about catching bugs, which hey, we're a software company, every software company has bugs, especially in STS\/\"Current Release\" type train models ala us, Microsoft, Citrix, and now VMW ... you could settle on maintenance releases within a STS, like 5.6.1, 5.6.2, then wait to go to other STS releases like 5.8.1, or 5.8.2 (which at time of writing is roughly right around the corner). That should keep you pretty safe.
\r\n
\r\n2) If you haven't figured it out already, you CAN update the load_balance_vm_attachments after creation, however, you have to do it with the VM's off or VG detached from the VM(s). We did this, as to get the targets to log back in again, detach\/reattach or reboot anyhow
\r\n
\r\nI haven't personally tried that with RAC, it would be worth playing around with on a test instance to make sure you fully understand the implications there.","className":"post__content__best_answer"}">
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2个答复

UserLevel 6
徽章 +29
今天偶然发现了这一点,对不起,您没有得到任何人的回应 @upx
1)如果您特别想要VGLB的性能功能(这是一流的,我是该团队的一员,他们致力于验证该功能最高的性能),那么是,5.6 ++非常适合。

如果您担心支持性,请注意,所有STS版本都应至少获得两个补丁(例如,5.6,5.6.1,5.6.2),然后将该分支移至另一个STS版本,例如5.8、5.8.1,等等。这些大约每〜4-5周来一次,所以

如果您担心捕获错误,那么,我们是一家软件公司,每个软件公司都有错误,尤其是在STS/“当前版本”类型的火车模型Ala US,Microsoft,Citrix和现在的VMW ...可以在STS内进行维护版本,例如5.6.1、5.6.2,然后等待到其他STS版本,例如5.8.1或5.8.2(写作时,大约在拐角处)。那应该使您非常安全。

2)如果您尚未弄清楚它,则可以在创建后更新load_balance_vm_attachments,但是,您必须使用VM OFF或从VM脱离的VG进行操作。我们这样做了,以使目标再次重新登录,无论如何,请分离/重新启动或重新启动

我没有亲自尝试使用RAC,值得在测试实例上玩耍,以确保您完全了解那里的含义。
UserLevel 2
徽章 +4
谢谢乔恩
因此,我将尽快更新,并在制作中镜像的测试环境中尝试。
这种Oracle RAC部署在两个不同的站点上都有2个静态,因此不应影响可用性
我会告诉你
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