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Palit writeback

  • Junnel_
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3 months 1 week ago #1353718 by Junnel_
Palit writeback was created by Junnel_
Mga sir need ko magpalit ng writeback, kasalukuyan ko ngayon gamit is Kingston 120gb yata. Papalitan ko ng WDS250G2B0A: WD Blue. Ask ko lang paano ba ilipat mga laman? Copy paste lang ba, natatakot kasi ako baka masira ko eh. Tatanggalin ko ba yung exisiting SSD ko tapos kabit ko sila parehas sa ibang pc tapos copy paste lang?

Reason kaya ako magpapalit is kasi madalas mag FPS drop mga games ko oks naman ping. At so far 1.0gb naman lahat status.

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3 months 1 week ago #1353739 by LOTR
Replied by LOTR on topic Palit writeback
from ssd to hdd mas lalo fps drop yan. plug and play lang yan WB disk i-set mo lang sa diskless app mo. wala ka kailangan kopyahin

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3 months 1 week ago #1353754 by Junnel_
Replied by Junnel_ on topic Palit writeback
WD Blue na SSD din po master. Salamat sa reply. OKs so plug n play lang pala ito? CCboot pala gamit ko. As in kabit ko lang boss and yun na yun?

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3 months 1 week ago #1353761 by SVCNet
Replied by SVCNet on topic Palit writeback
short answer: YES

on the notes:
so inisip mong may sira, o hindi na sapat ang laki ng SSD mo kaya mo pinalitan

ano ba ang proseso ng "writeback"?
ang "writeback-ssd" ay ang virtual memory sa HARDISK ng client mo
ang virtual memory ay nag i store ng KASALUKUYANG datos mo kung hindi sapat sa RAM mo
ibig sabihin HINDI MO NA KAILANGAN ang mga datos na yuin after ng gawain mo
dahil diskless ka at walang hardisk, yung "writeback ssd" ang ginagawa nyang virual memory

ilang dahilan ng pagloloko ng writeback-ssd mo
1) maaring hindi talaga sapat ang laki ng ssd mo. 128GB ang kailangan sa 25 clients
2) sapat ang laki ng ssd mo pero hindi na sapat ang natitirang "buhay"
3) matakaw sa "virtual files" ang clients mo. (install cheats, downliad, update)
4) may sumasabotahe sayo para punuin sadya ang writeback ssd mo

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3 months 1 week ago #1353767 by Junnel_
Replied by Junnel_ on topic Palit writeback
@SVCNet

Salamat master sa pag share. Actually 6mos ago pa advise sa akin na magpalit, kasi madalas fps drop lol, kaya lang sabi ng bantay pati cf nag fps drop na din pati minsan delayed response sya kahit browsing lang. Sabi sakin sablay daw ang Kingston kaya ganun. Pero oks naman sa HD Sentinel yung life nya. 21 units lang ako and minsan kahit daw isa lang gumagamit nag drop pa din.

Kaya inabot ako 6mos pa bago mag decide magpalit is kasi may prob din ako sa ISP before. Ngayon naka fibr na kaya next naman is ayusin yung drop. Like ngayon pag open ko 3 naglaro kagad lol wala naman drop. Parang sa hapon ako nakakatanggap ng report about drop.

Iniisip ko baka may sumasablay lang na lan cable kasi diagram ko nakakabit mikrotik and server sa 8port switch, then isang 24port nakakabit lahat ng clients doon pati timer, printer, cctv. Madalas kasi nawawala yung ilaw ng cable na nagdudugtong sa dalawang switch, pero naayos naman na namin yun pero drop pa din.

So ayun nga, plan ko na lang palitan writeback ng WD Blue SSD. Kaya naman 250gb eh kasi wala yata sya mas maliit.

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3 months 1 week ago #1353768 by SVCNet
Replied by SVCNet on topic Palit writeback
ano na nangyare after palitan?

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3 months 1 week ago - 3 months 1 week ago #1353774 by homer_simpson
Replied by homer_simpson on topic Palit writeback

SVCNet wrote: short answer: YES

on the notes:
so inisip mong may sira, o hindi na sapat ang laki ng SSD mo kaya mo pinalitan

ano ba ang proseso ng "writeback"?
ang "writeback-ssd" ay ang virtual memory sa HARDISK ng client mo
ang virtual memory ay nag i store ng KASALUKUYANG datos mo kung hindi sapat sa RAM mo
ibig sabihin HINDI MO NA KAILANGAN ang mga datos na yuin after ng gawain mo
dahil diskless ka at walang hardisk, yung "writeback ssd" ang ginagawa nyang virual memory

ilang dahilan ng pagloloko ng writeback-ssd mo
1) maaring hindi talaga sapat ang laki ng ssd mo. 128GB ang kailangan sa 25 clients
2) sapat ang laki ng ssd mo pero hindi na sapat ang natitirang "buhay"
3) matakaw sa "virtual files" ang clients mo. (install cheats, downliad, update)
4) may sumasabotahe sayo para punuin sadya ang writeback ssd mo


Ang write-back ay hindi virtual memory. Pag sinabi mo virtual memory ito yung memory (physical + paged o swap sa linux) na in-asemble ng OS. Ang virtual memory ay naka-designed na working memory at hindi for permanent storage in contrast with "write-back" device.

Write-back na sinasabi natin sa ccboot is actually a differencing disk. Ang term na write-back is a writing mechanism na ang ibig sabihin, "store mo muna sa memory at isulat mo nalang later on sa 'writeback device'". Kung mapapansin mo - may single, master image na shared across all nodes. Read-only lang ito. Any form of reads by nodes are written on the "write-back" device, having their own identifier (filename). Kaya habang tumatagal, bumagal ang performance kasi nga for every read/write, the OS has to perform comparison against its master image. Sa Linux, may image format called qcow. Kapag matal mo nang gamit ang differncing disk at gusto mo i-incorpate yung changes into the master image, pwede. Tapos, remove mo all the differencing copies of each node, umpisa uli sa updated master image.

"Write-back" device are therefore going to suffer to frequent writes.

Baka ang ibig sabihin mo ay buffering. For every write request to a permanent storage, the OS can delay the write (more performant, but can cause data loss) or write it straight away (mas mabagal) depening on how it is configured.

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3 months 1 week ago - 3 months 1 week ago #1353778 by SVCNet
Replied by SVCNet on topic Palit writeback
salamat sa istriktong pakahulugan ng virtual memory boss homer_simpson
natuto ako

neweys, isinaysay ko lang ang PROSESO ng paggamit ng diskless system sa writeback as virtual memory IF need gawa ng wala namang physical virtual memory ang diskless client.

ang purpose ay upang maipahatid sa TS na walang dapat ipangamba kahit mawala na lahat ang files sa writeback-ssd

ang salaysay ay para sa hindi technical at ang "quotes" ay para sa technical

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3 months 1 week ago #1353914 by Junnel_
Replied by Junnel_ on topic Palit writeback
@homer_simpson
@SVCNet

Mga master salamat. Malalaman ko ng husto kapag nagkaroon ako ng time bumisita sa shop this week. Pero kahapon wala naman ako nakuha reklamo or report about fps drop. Pero may mga araw din kasi na wala ding drop kahit sa lumang ssd. Kaya observe pa namin ng mas matagal. Update ako dito.

Salamat ulit mga master.

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3 months 1 week ago #1353921 by SVCNet
Replied by SVCNet on topic Palit writeback
"may mga araw din kasi na wala ding drop kahit sa lumang ssd"

yung mga araw na yun kaya nagkataon onte lang tomer?

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